TY  - CONF
AU  - Božović, Nikola
AU  - Ćosić, Mladen
AU  - Đoković, Ksenija
AU  - Milićević, Rajo
AU  - Krstić, Marija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/671
AB  - In the paper, the analysis of the bearing capacity of the pile and the redistribution of the
load on the pile toe and shaft was carried out. The tests were carried out by a static load test (SLT)
incrementally increasing the compressive force on the test pile, and the tension force on the anchor
piles. The test system consisted of one test pile and two anchor piles with a reaction beam. Two
tests were conducted according to the same test program, where the test piles were of the same
length, while the length of the anchor piles in the second test was increased. In the first test, the
anchor pile failed, while in the second test, the test pile failed. Based on the achieved limit values of
settlement of the test and anchor pile, the bearing capacity of the test pile at the toe and shaft was
determined. Subsequently, a CPT test was carried out and the bearing capacity was calculated
according to the LPC-CPT method.
C3  - GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja
T1  - Pile capacity distribution analysis for SLT with reactive system
EP  - 288
SP  - 282
UR  - https://hdl.handle.net/21.15107/rcub_rims_671
ER  - 

@conference{
author = "Božović, Nikola and Ćosić, Mladen and Đoković, Ksenija and Milićević, Rajo and Krstić, Marija",
year = "2023",
abstract = "In the paper, the analysis of the bearing capacity of the pile and the redistribution of the
load on the pile toe and shaft was carried out. The tests were carried out by a static load test (SLT)
incrementally increasing the compressive force on the test pile, and the tension force on the anchor
piles. The test system consisted of one test pile and two anchor piles with a reaction beam. Two
tests were conducted according to the same test program, where the test piles were of the same
length, while the length of the anchor piles in the second test was increased. In the first test, the
anchor pile failed, while in the second test, the test pile failed. Based on the achieved limit values of
settlement of the test and anchor pile, the bearing capacity of the test pile at the toe and shaft was
determined. Subsequently, a CPT test was carried out and the bearing capacity was calculated
according to the LPC-CPT method.",
journal = "GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja",
title = "Pile capacity distribution analysis for SLT with reactive system",
pages = "288-282",
url = "https://hdl.handle.net/21.15107/rcub_rims_671"
}

Božović, N., Ćosić, M., Đoković, K., Milićević, R.,& Krstić, M.. (2023). Pile capacity distribution analysis for SLT with reactive system. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja, 282-288.
https://hdl.handle.net/21.15107/rcub_rims_671

Božović N, Ćosić M, Đoković K, Milićević R, Krstić M. Pile capacity distribution analysis for SLT with reactive system. in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja. 2023;:282-288.
https://hdl.handle.net/21.15107/rcub_rims_671 .

Božović, Nikola, Ćosić, Mladen, Đoković, Ksenija, Milićević, Rajo, Krstić, Marija, "Pile capacity distribution analysis for SLT with reactive system" in GEOTECHNICAL ASPECTS OF CIVIL ENGINEERING AND EARTHQUAKE ENGINEERING - Vrnjačka Banja (2023):282-288,
https://hdl.handle.net/21.15107/rcub_rims_671 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Božović, Nikola
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/672
AB  - U radu je prikazan sadržaj predloženog dokumenta Elaborata ispitivanja šipova i jasnije
su razjašnjene aktivnosti koje su obuhvaćene ovim dokumentom. Na primeru objekta Ušće 2
demonstrirana je primena jednog dela rešenja o ispitivanju šipova, a što bi se našlo u samom
elaboratu. Analizirane su količine (obim) ispitivanja šipova po tipovima testova i analizirane su
aktivnosti u okviru svakog pojedinačnog testa. Naglašeno je da je potrebna bolja saradnja na
relaciji projektant, izvođač i nadzora prema ispitivaču šipova.
C3  - GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja
T1  - Analiza modela upravljanja kvalitetom ispitivanja šipova
EP  - 581
SP  - 571
UR  - https://hdl.handle.net/21.15107/rcub_rims_672
ER  - 

@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Božović, Nikola and Đoković, Ksenija",
year = "2023",
abstract = "U radu je prikazan sadržaj predloženog dokumenta Elaborata ispitivanja šipova i jasnije
su razjašnjene aktivnosti koje su obuhvaćene ovim dokumentom. Na primeru objekta Ušće 2
demonstrirana je primena jednog dela rešenja o ispitivanju šipova, a što bi se našlo u samom
elaboratu. Analizirane su količine (obim) ispitivanja šipova po tipovima testova i analizirane su
aktivnosti u okviru svakog pojedinačnog testa. Naglašeno je da je potrebna bolja saradnja na
relaciji projektant, izvođač i nadzora prema ispitivaču šipova.",
journal = "GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja",
title = "Analiza modela upravljanja kvalitetom ispitivanja šipova",
pages = "581-571",
url = "https://hdl.handle.net/21.15107/rcub_rims_672"
}

Ćosić, M., Šušić, N., Prica, M., Božović, N.,& Đoković, K.. (2023). Analiza modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja, 571-581.
https://hdl.handle.net/21.15107/rcub_rims_672

Ćosić M, Šušić N, Prica M, Božović N, Đoković K. Analiza modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja. 2023;:571-581.
https://hdl.handle.net/21.15107/rcub_rims_672 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Božović, Nikola, Đoković, Ksenija, "Analiza modela upravljanja kvalitetom ispitivanja šipova" in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja (2023):571-581,
https://hdl.handle.net/21.15107/rcub_rims_672 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Božović, Nikola
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/673
AB  - U radu je ukazano na postojeće probleme koji se pojavljuju prilikom planiranja, u toku i
nakon ispitivanja šipova. U tom smislu, na osnovu iskustava autora rada, predloženi su modeli
upravljanja kvalitetom ispitivanja šipova kojima se efikasnije planiraju i rešavaju sve aktivnosti
ispitivanja šipova i utiče na donošenje odluka koje se u praksi neadekvatno rešavaju. Posebno je
naglašeno uvođenje i primena Elaborata ispitivanja šipova kao nova forma dokumenta u kojem bi
se celokupna aktivnost planiranja, ispitivanja i donošenja odluka nakon ispitivnaja adekvatno
ispratili.
C3  - GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja
T1  - Razvoj modela upravljanja kvalitetom ispitivanja šipova
EP  - 570
SP  - 558
UR  - https://hdl.handle.net/21.15107/rcub_rims_673
ER  - 

@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Božović, Nikola and Đoković, Ksenija",
year = "2023",
abstract = "U radu je ukazano na postojeće probleme koji se pojavljuju prilikom planiranja, u toku i
nakon ispitivanja šipova. U tom smislu, na osnovu iskustava autora rada, predloženi su modeli
upravljanja kvalitetom ispitivanja šipova kojima se efikasnije planiraju i rešavaju sve aktivnosti
ispitivanja šipova i utiče na donošenje odluka koje se u praksi neadekvatno rešavaju. Posebno je
naglašeno uvođenje i primena Elaborata ispitivanja šipova kao nova forma dokumenta u kojem bi
se celokupna aktivnost planiranja, ispitivanja i donošenja odluka nakon ispitivnaja adekvatno
ispratili.",
journal = "GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja",
title = "Razvoj modela upravljanja kvalitetom ispitivanja šipova",
pages = "570-558",
url = "https://hdl.handle.net/21.15107/rcub_rims_673"
}

Ćosić, M., Šušić, N., Prica, M., Božović, N.,& Đoković, K.. (2023). Razvoj modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja, 558-570.
https://hdl.handle.net/21.15107/rcub_rims_673

Ćosić M, Šušić N, Prica M, Božović N, Đoković K. Razvoj modela upravljanja kvalitetom ispitivanja šipova. in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja. 2023;:558-570.
https://hdl.handle.net/21.15107/rcub_rims_673 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Božović, Nikola, Đoković, Ksenija, "Razvoj modela upravljanja kvalitetom ispitivanja šipova" in GEOTEHNIČKI ASPEKTI GRAĐEVINARSTVA I ZEMLJOTRESNO INŽENJERSTVO - Vrnjačka Banja (2023):558-570,
https://hdl.handle.net/21.15107/rcub_rims_673 .

TY  - CONF
AU  - Folić, Boris
AU  - Čokić, Miloš
AU  - Ćosić, Mladen
AU  - Sedmak, Simon
AU  - Žugić, Željko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/617
AB  - During earthquakes that exceed the designed level of the structure, the structure gets damaged. Here, the structure-foundation-soil is considered as a system, and the effect of the soil on the piles can be replaced by nonlinear p-y curves. Work on this topic began as early as 1957, based on the analogy between the triaxial test and the form of soil failure, and during the 1970’s, a number of researchers made significant progress in the development of appropriate models for different types of soil. Eurocode 8 pays special attention to the selection of earthquakes as a set of accelerograms. For areas within a radius of several hundred kilometers from central Romania and its southern part, the Vrancea hypocenter has a significant influence. In North Serbia and its surroundings, other sources of earthquakes are also possible, but when choosing accelerogram, the response spectra of several Vrancea records should also be used. The SSI model itself, where the soil is replaced by p-y curves, even though it might look complicated, it is significantly simpler and leads to faster results than integral 3D models. By using adequate soil parameters, fairly reliable data can be obtained on the degree and distribution of damage to the SSI system, like plastic hinges. In soil models used for clean sand, the curves used seem significantly more reliable than clayey ones, but here too caution is needed because the degree of compaction (relative density) has a significant effect, and the way of determining it is still not reliable.
PB  - University of Belgrade - Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings
T1  - The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response
SP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_rims_617
ER  - 

@conference{
author = "Folić, Boris and Čokić, Miloš and Ćosić, Mladen and Sedmak, Simon and Žugić, Željko",
year = "2023",
abstract = "During earthquakes that exceed the designed level of the structure, the structure gets damaged. Here, the structure-foundation-soil is considered as a system, and the effect of the soil on the piles can be replaced by nonlinear p-y curves. Work on this topic began as early as 1957, based on the analogy between the triaxial test and the form of soil failure, and during the 1970’s, a number of researchers made significant progress in the development of appropriate models for different types of soil. Eurocode 8 pays special attention to the selection of earthquakes as a set of accelerograms. For areas within a radius of several hundred kilometers from central Romania and its southern part, the Vrancea hypocenter has a significant influence. In North Serbia and its surroundings, other sources of earthquakes are also possible, but when choosing accelerogram, the response spectra of several Vrancea records should also be used. The SSI model itself, where the soil is replaced by p-y curves, even though it might look complicated, it is significantly simpler and leads to faster results than integral 3D models. By using adequate soil parameters, fairly reliable data can be obtained on the degree and distribution of damage to the SSI system, like plastic hinges. In soil models used for clean sand, the curves used seem significantly more reliable than clayey ones, but here too caution is needed because the degree of compaction (relative density) has a significant effect, and the way of determining it is still not reliable.",
publisher = "University of Belgrade - Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings",
title = "The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response",
pages = "9",
url = "https://hdl.handle.net/21.15107/rcub_rims_617"
}

Folić, B., Čokić, M., Ćosić, M., Sedmak, S.,& Žugić, Ž.. (2023). The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response. in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings
University of Belgrade - Faculty of Mechanical Engineering., 9.
https://hdl.handle.net/21.15107/rcub_rims_617

Folić B, Čokić M, Ćosić M, Sedmak S, Žugić Ž. The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response. in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings. 2023;:9.
https://hdl.handle.net/21.15107/rcub_rims_617 .

Folić, Boris, Čokić, Miloš, Ćosić, Mladen, Sedmak, Simon, Žugić, Željko, "The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response" in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings (2023):9,
https://hdl.handle.net/21.15107/rcub_rims_617 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Đoković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/493
AB  - The paper shows the comparative analysis of behavior and bearing capacity of piles examined using the Dynamic Load Test (DLT) according to Static Load Test (SLT) results. The pile testing methodology is based on the existing ASTM standards and experiences of the authors of the paper. The pile tests were carried out using counterweights, reactive system, dynamic testing equipment, hardware and software for SLT and DLT. The data obtained by testing were statis-tically processed, and also a regression analysis of the linear function was conducted, resulting in the creation of the model for the change of mobilized static bearing capacity from DLT according to SLT. In addition, a procedure for correcting the solution of mobilized static bearing capacity from DLT according to SLT, is made by observing provisions of standard EN 1997-1:2004, so the average deviation of solutions from DLT according to SLT is reduced. Apart from that, through iterations, the value of correlation factor ξ5 is determined, taking into consideration solutions presented by SLT and DLT of piles of the real structures.
T2  - Structural Integrity and Life, Special Issue
T1  - Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)
EP  - 68
SP  - 53
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_493
ER  - 

@article{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Đoković, Ksenija",
year = "2023",
abstract = "The paper shows the comparative analysis of behavior and bearing capacity of piles examined using the Dynamic Load Test (DLT) according to Static Load Test (SLT) results. The pile testing methodology is based on the existing ASTM standards and experiences of the authors of the paper. The pile tests were carried out using counterweights, reactive system, dynamic testing equipment, hardware and software for SLT and DLT. The data obtained by testing were statis-tically processed, and also a regression analysis of the linear function was conducted, resulting in the creation of the model for the change of mobilized static bearing capacity from DLT according to SLT. In addition, a procedure for correcting the solution of mobilized static bearing capacity from DLT according to SLT, is made by observing provisions of standard EN 1997-1:2004, so the average deviation of solutions from DLT according to SLT is reduced. Apart from that, through iterations, the value of correlation factor ξ5 is determined, taking into consideration solutions presented by SLT and DLT of piles of the real structures.",
journal = "Structural Integrity and Life, Special Issue",
title = "Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)",
pages = "68-53",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_493"
}

Ćosić, M., Šušić, N., Prica, M.,& Đoković, K.. (2023). Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT). in Structural Integrity and Life, Special Issue, 23, 53-68.
https://hdl.handle.net/21.15107/rcub_rims_493

Ćosić M, Šušić N, Prica M, Đoković K. Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT). in Structural Integrity and Life, Special Issue. 2023;23:53-68.
https://hdl.handle.net/21.15107/rcub_rims_493 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Đoković, Ksenija, "Procedure for correction of bearing capacity of piles examined by the Dynamic Load Test (DLT) according to the Static Load Test (SLT)" in Structural Integrity and Life, Special Issue, 23 (2023):53-68,
https://hdl.handle.net/21.15107/rcub_rims_493 .

TY  - JOUR
AU  - Đoković, Ksenija
AU  - Šušić, Nenad
AU  - Ćosić, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/492
AB  - The application of dispersive soil can result in various types of damage, and even the collapse of embanked build-ings if it is not identified. Dispersive soils cannot be uniquely identified by visual identification in the field, or by usual standard methods used for soil identification in the geo-mechanical laboratory. The paper presents the results of laboratory geomechanical tests aimed at identifying and classifying erodible dispersive fine-grained soil. The tests were carried out using the crumb test, the double hydrometer test (SCS), and the pinhole test on samples: sandy clay embankment dams of ‘Rovni’, loess from different locations (Zemun, Novi Beograd, Titel, Kelebija, Srbobran, Slanka-men, Ruma, Mali Iđoš) and kaolinite sandy clay deposits Grabež - Aranđelovac. The possibility of improving disper-sive soil by adding fly ash was also analyzed. Pinhole tests on dispersive soil samples with the addition of 10, 30 and 50 % ash showed that there was a decrease in dispersivity of natural soil for one to two dispersion classes.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Dispersive Soils: Properties, Identification, Classification and Stabilization
EP  - 52
SP  - 47
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_492
ER  - 

@article{
author = "Đoković, Ksenija and Šušić, Nenad and Ćosić, Mladen",
year = "2023",
abstract = "The application of dispersive soil can result in various types of damage, and even the collapse of embanked build-ings if it is not identified. Dispersive soils cannot be uniquely identified by visual identification in the field, or by usual standard methods used for soil identification in the geo-mechanical laboratory. The paper presents the results of laboratory geomechanical tests aimed at identifying and classifying erodible dispersive fine-grained soil. The tests were carried out using the crumb test, the double hydrometer test (SCS), and the pinhole test on samples: sandy clay embankment dams of ‘Rovni’, loess from different locations (Zemun, Novi Beograd, Titel, Kelebija, Srbobran, Slanka-men, Ruma, Mali Iđoš) and kaolinite sandy clay deposits Grabež - Aranđelovac. The possibility of improving disper-sive soil by adding fly ash was also analyzed. Pinhole tests on dispersive soil samples with the addition of 10, 30 and 50 % ash showed that there was a decrease in dispersivity of natural soil for one to two dispersion classes.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Dispersive Soils: Properties, Identification, Classification and Stabilization",
pages = "52-47",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_492"
}

Đoković, K., Šušić, N.,& Ćosić, M.. (2023). Dispersive Soils: Properties, Identification, Classification and Stabilization. in Integritet i vek konstrukcija, specijalno izdanje, 23, 47-52.
https://hdl.handle.net/21.15107/rcub_rims_492

Đoković K, Šušić N, Ćosić M. Dispersive Soils: Properties, Identification, Classification and Stabilization. in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:47-52.
https://hdl.handle.net/21.15107/rcub_rims_492 .

Đoković, Ksenija, Šušić, Nenad, Ćosić, Mladen, "Dispersive Soils: Properties, Identification, Classification and Stabilization" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):47-52,
https://hdl.handle.net/21.15107/rcub_rims_492 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Đoković, Ksenija
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/764
AB  - The paper presents the static load tests (SLT) and dynamic load tests (DLT) of the piles and numerical analyses of piles in interaction with the soil of wind turbines. Pile tests were conducted using the equipment with counterweights for SLT and an autonomous system for the control of DLT of the piles. Numerical DLT analyses were performed by the signal matching method. Tests proved that the design resistance of piles of SLT and mobilized static resistance of DLT are higher than the design forces obtained from the design of the wind turbine foundations. Also, the need to develop a plan for testing the bearing capacity of piles, concerning large and significant buildings was emphasized.
T2  - Comptes rendus de l’Académie bulgare des Sciences
T1  - Static-Dynamic Tests of Bearing Capacity of Wind Turbine Piles
EP  - 1507
IS  - 10
SP  - 1499
VL  - 75
DO  - 10.7546/CRABS.2022.10.13
ER  - 

@article{
author = "Ćosić, Mladen and Šušić, Nenad and Đoković, Ksenija",
year = "2022",
abstract = "The paper presents the static load tests (SLT) and dynamic load tests (DLT) of the piles and numerical analyses of piles in interaction with the soil of wind turbines. Pile tests were conducted using the equipment with counterweights for SLT and an autonomous system for the control of DLT of the piles. Numerical DLT analyses were performed by the signal matching method. Tests proved that the design resistance of piles of SLT and mobilized static resistance of DLT are higher than the design forces obtained from the design of the wind turbine foundations. Also, the need to develop a plan for testing the bearing capacity of piles, concerning large and significant buildings was emphasized.",
journal = "Comptes rendus de l’Académie bulgare des Sciences",
title = "Static-Dynamic Tests of Bearing Capacity of Wind Turbine Piles",
pages = "1507-1499",
number = "10",
volume = "75",
doi = "10.7546/CRABS.2022.10.13"
}

Ćosić, M., Šušić, N.,& Đoković, K.. (2022). Static-Dynamic Tests of Bearing Capacity of Wind Turbine Piles. in Comptes rendus de l’Académie bulgare des Sciences, 75(10), 1499-1507.
https://doi.org/10.7546/CRABS.2022.10.13

Ćosić M, Šušić N, Đoković K. Static-Dynamic Tests of Bearing Capacity of Wind Turbine Piles. in Comptes rendus de l’Académie bulgare des Sciences. 2022;75(10):1499-1507.
doi:10.7546/CRABS.2022.10.13 .

Ćosić, Mladen, Šušić, Nenad, Đoković, Ksenija, "Static-Dynamic Tests of Bearing Capacity of Wind Turbine Piles" in Comptes rendus de l’Académie bulgare des Sciences, 75, no. 10 (2022):1499-1507,
https://doi.org/10.7546/CRABS.2022.10.13 . .

TY  - CONF
AU  - Folić, Boris
AU  - Liolios, Ast
AU  - Ćosić, Mladen
AU  - Folić, Radomir
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/609
AB  - The paper indicates the problems of maintaining buildings constructed in the IMS system, founded on piles with a basement floor. Also presented are the problems with the installations of buildings with a roof terrace, such as downpipe verticals that are extending through the building, or installations of water supply and sewerage that run through the technical floor at ground level. An approximate analysis of the hydrodynamic impact is presented. The analogy of the effects of caverns in sandy soil with lateral soil expansion during liquefaction was also used. Given the change in climatic conditions, it is necessary in some cases to analyze the influence of atmospheric conditions in the soil-structure interaction. The advantage of buildings built in the frame IMS system (Žeželj) in seismically active areas was also indicated. These buildings are also more resistant to problems that may arise later in construction of deep foundations.
C3  - Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 12th International Conference, Vrnjacka Banja, Serbia, Proceedings
T1  - Effects of Maintaining a Building Constructed in the IMS System (Žeželj) with an Approximate Analysis of Hydrodynamical Shock and the Analogy with Lateral Soil Expansion with Cavern Effects During Liquefaction
UR  - https://hdl.handle.net/21.15107/rcub_rims_609
ER  - 

@conference{
author = "Folić, Boris and Liolios, Ast and Ćosić, Mladen and Folić, Radomir",
year = "2022",
abstract = "The paper indicates the problems of maintaining buildings constructed in the IMS system, founded on piles with a basement floor. Also presented are the problems with the installations of buildings with a roof terrace, such as downpipe verticals that are extending through the building, or installations of water supply and sewerage that run through the technical floor at ground level. An approximate analysis of the hydrodynamic impact is presented. The analogy of the effects of caverns in sandy soil with lateral soil expansion during liquefaction was also used. Given the change in climatic conditions, it is necessary in some cases to analyze the influence of atmospheric conditions in the soil-structure interaction. The advantage of buildings built in the frame IMS system (Žeželj) in seismically active areas was also indicated. These buildings are also more resistant to problems that may arise later in construction of deep foundations.",
journal = "Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 12th International Conference, Vrnjacka Banja, Serbia, Proceedings",
title = "Effects of Maintaining a Building Constructed in the IMS System (Žeželj) with an Approximate Analysis of Hydrodynamical Shock and the Analogy with Lateral Soil Expansion with Cavern Effects During Liquefaction",
url = "https://hdl.handle.net/21.15107/rcub_rims_609"
}

Folić, B., Liolios, A., Ćosić, M.,& Folić, R.. (2022). Effects of Maintaining a Building Constructed in the IMS System (Žeželj) with an Approximate Analysis of Hydrodynamical Shock and the Analogy with Lateral Soil Expansion with Cavern Effects During Liquefaction. in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 12th International Conference, Vrnjacka Banja, Serbia, Proceedings.
https://hdl.handle.net/21.15107/rcub_rims_609

Folić B, Liolios A, Ćosić M, Folić R. Effects of Maintaining a Building Constructed in the IMS System (Žeželj) with an Approximate Analysis of Hydrodynamical Shock and the Analogy with Lateral Soil Expansion with Cavern Effects During Liquefaction. in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 12th International Conference, Vrnjacka Banja, Serbia, Proceedings. 2022;.
https://hdl.handle.net/21.15107/rcub_rims_609 .

Folić, Boris, Liolios, Ast, Ćosić, Mladen, Folić, Radomir, "Effects of Maintaining a Building Constructed in the IMS System (Žeželj) with an Approximate Analysis of Hydrodynamical Shock and the Analogy with Lateral Soil Expansion with Cavern Effects During Liquefaction" in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 12th International Conference, Vrnjacka Banja, Serbia, Proceedings (2022),
https://hdl.handle.net/21.15107/rcub_rims_609 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/608
AB  - The paper presents the comparative analysis of several piles for different pier locations of a bridge by employing in-situ deep foundations tests and in-situ soil tests. The focus of the paper is on the
presentation of the reliability of solutions obtained using the Dynamic Load Test (DLT) for in-situ
tests of the bearing capacity of deep foundations – piles. The DLT test was conducted in two stages:
in-situ DLT of piles and pile bearing capacity analysis using the wave theory and the method of
characteristics. The signals of upward traveling force waves, obtained by in-situ DLT of piles were
signal matched with the signals of the numerical nonlinear model of the dynamic pile-soil interaction.
The results of DLT of pile bearing capacity are presented as componential values (regarding the pile
base and the pile shaft) and as a cumulative value (total bearing capacity), so that the comparison of
DLT and pressuremeter test (PMT) was conducted both according to componential and cumulative
bearing capacities. Since it is not possible to strictly conduct DLT and PMT for the same settlement
level, it is not possible to directly compare the bearing capacity, however the comparison was
performed taking into account the bearing capacities from PMTs according to Eurocode 7. DLTs
provided bearing capacities which correlate well with the PMTs results. Also, DLTs determined the
corresponding elastoplastic settlement for the designed resistance of piles, which is very useful to the designers in the analysis of serviceability (settlement) of both the pier locations and of the entire bridge.
C3  - 5th symposium of the Macedonian Association for Geotechnics, Ohrid, Macedonia, Proceedings
T1  - Comparative Analysis of Bearing Capacity of Piles Tested by Dynamic Load Test (DLT) and Pressuremeter Test (PMT)
EP  - 354
SP  - 344
UR  - https://hdl.handle.net/21.15107/rcub_rims_608
ER  - 

@conference{
author = "Ćosić, Mladen and Šušić, Nenad",
year = "2022",
abstract = "The paper presents the comparative analysis of several piles for different pier locations of a bridge by employing in-situ deep foundations tests and in-situ soil tests. The focus of the paper is on the
presentation of the reliability of solutions obtained using the Dynamic Load Test (DLT) for in-situ
tests of the bearing capacity of deep foundations – piles. The DLT test was conducted in two stages:
in-situ DLT of piles and pile bearing capacity analysis using the wave theory and the method of
characteristics. The signals of upward traveling force waves, obtained by in-situ DLT of piles were
signal matched with the signals of the numerical nonlinear model of the dynamic pile-soil interaction.
The results of DLT of pile bearing capacity are presented as componential values (regarding the pile
base and the pile shaft) and as a cumulative value (total bearing capacity), so that the comparison of
DLT and pressuremeter test (PMT) was conducted both according to componential and cumulative
bearing capacities. Since it is not possible to strictly conduct DLT and PMT for the same settlement
level, it is not possible to directly compare the bearing capacity, however the comparison was
performed taking into account the bearing capacities from PMTs according to Eurocode 7. DLTs
provided bearing capacities which correlate well with the PMTs results. Also, DLTs determined the
corresponding elastoplastic settlement for the designed resistance of piles, which is very useful to the designers in the analysis of serviceability (settlement) of both the pier locations and of the entire bridge.",
journal = "5th symposium of the Macedonian Association for Geotechnics, Ohrid, Macedonia, Proceedings",
title = "Comparative Analysis of Bearing Capacity of Piles Tested by Dynamic Load Test (DLT) and Pressuremeter Test (PMT)",
pages = "354-344",
url = "https://hdl.handle.net/21.15107/rcub_rims_608"
}

Ćosić, M.,& Šušić, N.. (2022). Comparative Analysis of Bearing Capacity of Piles Tested by Dynamic Load Test (DLT) and Pressuremeter Test (PMT). in 5th symposium of the Macedonian Association for Geotechnics, Ohrid, Macedonia, Proceedings, 344-354.
https://hdl.handle.net/21.15107/rcub_rims_608

Ćosić M, Šušić N. Comparative Analysis of Bearing Capacity of Piles Tested by Dynamic Load Test (DLT) and Pressuremeter Test (PMT). in 5th symposium of the Macedonian Association for Geotechnics, Ohrid, Macedonia, Proceedings. 2022;:344-354.
https://hdl.handle.net/21.15107/rcub_rims_608 .

Ćosić, Mladen, Šušić, Nenad, "Comparative Analysis of Bearing Capacity of Piles Tested by Dynamic Load Test (DLT) and Pressuremeter Test (PMT)" in 5th symposium of the Macedonian Association for Geotechnics, Ohrid, Macedonia, Proceedings (2022):344-354,
https://hdl.handle.net/21.15107/rcub_rims_608 .

TY  - JOUR
AU  - Živanović, Stana
AU  - Lin, Bintian
AU  - Vu Dang, Hiep
AU  - Zhang, Sigong
AU  - Ćosić, Mladen
AU  - Caprani, Colin
AU  - Zhang, Quingwen
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/443
AB  - Bipedal models for walkers, originally developed in the research field of biomechanics,
have been identified as potential candidates for modelling pedestrians in structural engineering
applications. These models provide insight into both the kinetics and kinematics of walking locomotion and are considered to have a significant potential to improve the vibration serviceability
assessment of civil engineering structures. Despite this notion, the ability of the bipedal models to
represent the key features of the walking gait and natural variability within the pedestrian population are still under-researched. This paper critically evaluates the performance of two bipedal models with rigid legs to realistically both reproduce key features of an individual pedestrian’s walking gait and represent a wide range of individuals. The evaluation is performed for walking on a rigid, rather than vibrating, structure due to the availability of experimental data and expectation that successful modelling on rigid surfaces is a necessary condition for progressing towards modelling on the vibrating structures. Ready-to-use equations are provided and the ability of the models to represent the kinematics and kinetics of individual pedestrians as well as the inter-subject variability typical of the human population is critically evaluated. It was found that the two models could generate realistic combinations of the gait parameters and their correlations, but are less successful in reproducing genuine kinetic and kinematics profiles.
PB  - MDPI
T2  - Buildings, Vol. 12, No. 8, 2022, pp. 1-19
T1  - Evaluation of Inverted-Pendulum-with-Rigid-Legs Walking Locomotion Models for Civil Engineering Applications
IS  - 8
VL  - 12
DO  - 10.3390/buildings12081216
ER  - 

@article{
author = "Živanović, Stana and Lin, Bintian and Vu Dang, Hiep and Zhang, Sigong and Ćosić, Mladen and Caprani, Colin and Zhang, Quingwen",
year = "2022",
abstract = "Bipedal models for walkers, originally developed in the research field of biomechanics,
have been identified as potential candidates for modelling pedestrians in structural engineering
applications. These models provide insight into both the kinetics and kinematics of walking locomotion and are considered to have a significant potential to improve the vibration serviceability
assessment of civil engineering structures. Despite this notion, the ability of the bipedal models to
represent the key features of the walking gait and natural variability within the pedestrian population are still under-researched. This paper critically evaluates the performance of two bipedal models with rigid legs to realistically both reproduce key features of an individual pedestrian’s walking gait and represent a wide range of individuals. The evaluation is performed for walking on a rigid, rather than vibrating, structure due to the availability of experimental data and expectation that successful modelling on rigid surfaces is a necessary condition for progressing towards modelling on the vibrating structures. Ready-to-use equations are provided and the ability of the models to represent the kinematics and kinetics of individual pedestrians as well as the inter-subject variability typical of the human population is critically evaluated. It was found that the two models could generate realistic combinations of the gait parameters and their correlations, but are less successful in reproducing genuine kinetic and kinematics profiles.",
publisher = "MDPI",
journal = "Buildings, Vol. 12, No. 8, 2022, pp. 1-19",
title = "Evaluation of Inverted-Pendulum-with-Rigid-Legs Walking Locomotion Models for Civil Engineering Applications",
number = "8",
volume = "12",
doi = "10.3390/buildings12081216"
}

Živanović, S., Lin, B., Vu Dang, H., Zhang, S., Ćosić, M., Caprani, C.,& Zhang, Q.. (2022). Evaluation of Inverted-Pendulum-with-Rigid-Legs Walking Locomotion Models for Civil Engineering Applications. in Buildings, Vol. 12, No. 8, 2022, pp. 1-19
MDPI., 12(8).
https://doi.org/10.3390/buildings12081216

Živanović S, Lin B, Vu Dang H, Zhang S, Ćosić M, Caprani C, Zhang Q. Evaluation of Inverted-Pendulum-with-Rigid-Legs Walking Locomotion Models for Civil Engineering Applications. in Buildings, Vol. 12, No. 8, 2022, pp. 1-19. 2022;12(8).
doi:10.3390/buildings12081216 .

Živanović, Stana, Lin, Bintian, Vu Dang, Hiep, Zhang, Sigong, Ćosić, Mladen, Caprani, Colin, Zhang, Quingwen, "Evaluation of Inverted-Pendulum-with-Rigid-Legs Walking Locomotion Models for Civil Engineering Applications" in Buildings, Vol. 12, No. 8, 2022, pp. 1-19, 12, no. 8 (2022),
https://doi.org/10.3390/buildings12081216 . .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
AU  - Božović, Nikola
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/753
AB  - The paper presents typical examples of pile load tests with a specific analysis of results, whereby the test methodology relies on existing ASTM standards, own knowledge and experience. The pile tests were conducted using own equipment with licensed hardware and software for the Dynamic Load Test (DLT). The tests have shown the correct and problematic situations that arise when analyzing the bearing capacity of piles. Aspects of application of different equipment and testing methodologies in different situations are indicated. Also, the need to develop a plan for testing the load capacity of piles when it comes to large and significant structures was pointed out.
PB  - Savez građevinskih inženjera Srbije SGIS
C3  - Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
T1  - Some Aspects of Pile Testing Using Dynamic Load Test (DLT)
EP  - 299
SP  - 289
UR  - https://hdl.handle.net/21.15107/rcub_rims_753
ER  - 

@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko and Božović, Nikola",
year = "2021",
abstract = "The paper presents typical examples of pile load tests with a specific analysis of results, whereby the test methodology relies on existing ASTM standards, own knowledge and experience. The pile tests were conducted using own equipment with licensed hardware and software for the Dynamic Load Test (DLT). The tests have shown the correct and problematic situations that arise when analyzing the bearing capacity of piles. Aspects of application of different equipment and testing methodologies in different situations are indicated. Also, the need to develop a plan for testing the load capacity of piles when it comes to large and significant structures was pointed out.",
publisher = "Savez građevinskih inženjera Srbije SGIS",
journal = "Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia",
title = "Some Aspects of Pile Testing Using Dynamic Load Test (DLT)",
pages = "299-289",
url = "https://hdl.handle.net/21.15107/rcub_rims_753"
}

Ćosić, M., Šušić, N., Prica, M.,& Božović, N.. (2021). Some Aspects of Pile Testing Using Dynamic Load Test (DLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
Savez građevinskih inženjera Srbije SGIS., 289-299.
https://hdl.handle.net/21.15107/rcub_rims_753

Ćosić M, Šušić N, Prica M, Božović N. Some Aspects of Pile Testing Using Dynamic Load Test (DLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia. 2021;:289-299.
https://hdl.handle.net/21.15107/rcub_rims_753 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, Božović, Nikola, "Some Aspects of Pile Testing Using Dynamic Load Test (DLT)" in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia (2021):289-299,
https://hdl.handle.net/21.15107/rcub_rims_753 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/754
AB  - The paper presents typical examples of pile load tests with a specific analysis of results, whereby the test methodology relies on existing ASTM standards, own knowledge and experience. The pile tests were conducted using own equipment with licensed hardware and software for the Static Load Test (SLT). The tests have shown some situations that arise when analyzing the bearing capacity of piles. Aspects of application of different equipment and testing methodologies in different situations are indicated. Also, the need to develop a plan for testing the load capacity of piles when it comes to large and significant structures was pointed out.
PB  - Savez građevinskih inženjera Srbije SGIS
C3  - Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
T1  - Some Aspects of Pile Testing Using Static Load Test (SLT)
EP  - 327
SP  - 317
UR  - https://hdl.handle.net/21.15107/rcub_rims_754
ER  - 

@conference{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko",
year = "2021",
abstract = "The paper presents typical examples of pile load tests with a specific analysis of results, whereby the test methodology relies on existing ASTM standards, own knowledge and experience. The pile tests were conducted using own equipment with licensed hardware and software for the Static Load Test (SLT). The tests have shown some situations that arise when analyzing the bearing capacity of piles. Aspects of application of different equipment and testing methodologies in different situations are indicated. Also, the need to develop a plan for testing the load capacity of piles when it comes to large and significant structures was pointed out.",
publisher = "Savez građevinskih inženjera Srbije SGIS",
journal = "Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia",
title = "Some Aspects of Pile Testing Using Static Load Test (SLT)",
pages = "327-317",
url = "https://hdl.handle.net/21.15107/rcub_rims_754"
}

Ćosić, M., Šušić, N.,& Prica, M.. (2021). Some Aspects of Pile Testing Using Static Load Test (SLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
Savez građevinskih inženjera Srbije SGIS., 317-327.
https://hdl.handle.net/21.15107/rcub_rims_754

Ćosić M, Šušić N, Prica M. Some Aspects of Pile Testing Using Static Load Test (SLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia. 2021;:317-327.
https://hdl.handle.net/21.15107/rcub_rims_754 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, "Some Aspects of Pile Testing Using Static Load Test (SLT)" in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia (2021):317-327,
https://hdl.handle.net/21.15107/rcub_rims_754 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Folić, Radomir
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/751
AB  - The paper shows aspects of damping modelling in nonlinear static pushover analysis (NSPA) of structures through systematization of damping types and formed flow diagram, depending on the type of applied target displacement analysis. By applying the developed flow diagram, in the process of creating and analysing numerical models of structures, it is possible to very efficiently consider which type of damping should be selected and how to introduce damping in nonlinear static pushover analysis. Generally speaking, in nonlinear static pushover analysis (NSPA) damping is introduced indirectly by reducing the response spectrum. The problem of introducing damping is considered taking into account the soil-structure interaction, modelling the kinematic effects and the damping effects of the foundation, i.e., the ground. Parametric analysis was performed by varying the parameters: the effect of foundation depth, i.e., the impact of the existence of underground floors and the impact of damping. Based on the developed pushover curves, the levels of target displacements for each individual condition were determined, and then these discrete values were classified according to soil categories. By connecting such discrete values of the target displacement, a cumulative curve was constructed, i.e., an envelope of possible states of drifts and forces. By applying the proposed procedure, it is possible to consider the possible level of nonlinear deformations of the system, taking into account the effect of interaction with the soil and damping. The research established that the introduction of the soil-structure interaction can significantly affect the values of global drift, and thus partially the correction of the relevant total lateral seismic force. The sensitivity of the change in the relevant total lateral seismic force is much lower than the displacement, because in the nonlinear domain the system has much less stiffness, even in certain situations the stiffness is zero, so a small increase in load can produce much greater deformation. Also, the research found that for different types of soil and different damping values, the fragments of the pushover curves, obtained by interpolating the target displacements for the same soil types, overlap at certain intervals
C3  - 1st Croatian Conference on Earthquake Engineering, Zagreb, Croatia
T1  - Modeling of Damping Effects in Soil – Structure Interaction in the Pushover Analysis
EP  - 1344
SP  - 1333
DO  - 10.5592/co/1crocee.2021.194
ER  - 

@conference{
author = "Ćosić, Mladen and Folić, Radomir",
year = "2021",
abstract = "The paper shows aspects of damping modelling in nonlinear static pushover analysis (NSPA) of structures through systematization of damping types and formed flow diagram, depending on the type of applied target displacement analysis. By applying the developed flow diagram, in the process of creating and analysing numerical models of structures, it is possible to very efficiently consider which type of damping should be selected and how to introduce damping in nonlinear static pushover analysis. Generally speaking, in nonlinear static pushover analysis (NSPA) damping is introduced indirectly by reducing the response spectrum. The problem of introducing damping is considered taking into account the soil-structure interaction, modelling the kinematic effects and the damping effects of the foundation, i.e., the ground. Parametric analysis was performed by varying the parameters: the effect of foundation depth, i.e., the impact of the existence of underground floors and the impact of damping. Based on the developed pushover curves, the levels of target displacements for each individual condition were determined, and then these discrete values were classified according to soil categories. By connecting such discrete values of the target displacement, a cumulative curve was constructed, i.e., an envelope of possible states of drifts and forces. By applying the proposed procedure, it is possible to consider the possible level of nonlinear deformations of the system, taking into account the effect of interaction with the soil and damping. The research established that the introduction of the soil-structure interaction can significantly affect the values of global drift, and thus partially the correction of the relevant total lateral seismic force. The sensitivity of the change in the relevant total lateral seismic force is much lower than the displacement, because in the nonlinear domain the system has much less stiffness, even in certain situations the stiffness is zero, so a small increase in load can produce much greater deformation. Also, the research found that for different types of soil and different damping values, the fragments of the pushover curves, obtained by interpolating the target displacements for the same soil types, overlap at certain intervals",
journal = "1st Croatian Conference on Earthquake Engineering, Zagreb, Croatia",
title = "Modeling of Damping Effects in Soil – Structure Interaction in the Pushover Analysis",
pages = "1344-1333",
doi = "10.5592/co/1crocee.2021.194"
}

Ćosić, M.,& Folić, R.. (2021). Modeling of Damping Effects in Soil – Structure Interaction in the Pushover Analysis. in 1st Croatian Conference on Earthquake Engineering, Zagreb, Croatia, 1333-1344.
https://doi.org/10.5592/co/1crocee.2021.194

Ćosić M, Folić R. Modeling of Damping Effects in Soil – Structure Interaction in the Pushover Analysis. in 1st Croatian Conference on Earthquake Engineering, Zagreb, Croatia. 2021;:1333-1344.
doi:10.5592/co/1crocee.2021.194 .

Ćosić, Mladen, Folić, Radomir, "Modeling of Damping Effects in Soil – Structure Interaction in the Pushover Analysis" in 1st Croatian Conference on Earthquake Engineering, Zagreb, Croatia (2021):1333-1344,
https://doi.org/10.5592/co/1crocee.2021.194 . .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Božović, Nikola
AU  - Krstić, Marija
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/752
AB  - The paper analyses transmission and redistribution of the load from the pile on the soil, with a special focus on these effects regarding the shaft and base of the pile. The test was conducted using the dynamic load test (DLT) by incrementally increasing the kinetic energy of the drop weight impact in several drops. The results of in‒situ DLTs are presented and after the performed signal matching for every impact of the drop weight. The testing and appropriate numerical analyses determined the mechanism of redistribution of the shaft-base load of the pile up to the ultimate bearing capacity, whereby there occurs a reduction in the transmission of the load via the shaft and an increase in the transmission of the load via the base.
PB  - Savez građevinskih inženjera Srbije SGIS
C3  - Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
T1  - Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT)
EP  - 316
SP  - 308
UR  - https://hdl.handle.net/21.15107/rcub_rims_752
ER  - 

@conference{
author = "Ćosić, Mladen and Božović, Nikola and Krstić, Marija",
year = "2021",
abstract = "The paper analyses transmission and redistribution of the load from the pile on the soil, with a special focus on these effects regarding the shaft and base of the pile. The test was conducted using the dynamic load test (DLT) by incrementally increasing the kinetic energy of the drop weight impact in several drops. The results of in‒situ DLTs are presented and after the performed signal matching for every impact of the drop weight. The testing and appropriate numerical analyses determined the mechanism of redistribution of the shaft-base load of the pile up to the ultimate bearing capacity, whereby there occurs a reduction in the transmission of the load via the shaft and an increase in the transmission of the load via the base.",
publisher = "Savez građevinskih inženjera Srbije SGIS",
journal = "Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia",
title = "Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT)",
pages = "316-308",
url = "https://hdl.handle.net/21.15107/rcub_rims_752"
}

Ćosić, M., Božović, N.,& Krstić, M.. (2021). Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia
Savez građevinskih inženjera Srbije SGIS., 308-316.
https://hdl.handle.net/21.15107/rcub_rims_752

Ćosić M, Božović N, Krstić M. Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT). in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia. 2021;:308-316.
https://hdl.handle.net/21.15107/rcub_rims_752 .

Ćosić, Mladen, Božović, Nikola, Krstić, Marija, "Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT)" in Earthquake Engineering and Geotechnical Aspects of Civil Engineering, Vrnjačka Banja, Serbia (2021):308-316,
https://hdl.handle.net/21.15107/rcub_rims_752 .

TY  - PAT
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Prica, Marko
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/623
T2  - Nacionalni registar
T1  - Sistem sa oprugom za poboljšanje dinamičkog ispitivanja šipa
UR  - https://hdl.handle.net/21.15107/rcub_rims_623
ER  - 

@misc{
author = "Ćosić, Mladen and Šušić, Nenad and Prica, Marko",
year = "2021",
journal = "Nacionalni registar",
title = "Sistem sa oprugom za poboljšanje dinamičkog ispitivanja šipa",
url = "https://hdl.handle.net/21.15107/rcub_rims_623"
}

Ćosić, M., Šušić, N.,& Prica, M.. (2021). Sistem sa oprugom za poboljšanje dinamičkog ispitivanja šipa. in Nacionalni registar.
https://hdl.handle.net/21.15107/rcub_rims_623

Ćosić M, Šušić N, Prica M. Sistem sa oprugom za poboljšanje dinamičkog ispitivanja šipa. in Nacionalni registar. 2021;.
https://hdl.handle.net/21.15107/rcub_rims_623 .

Ćosić, Mladen, Šušić, Nenad, Prica, Marko, "Sistem sa oprugom za poboljšanje dinamičkog ispitivanja šipa" in Nacionalni registar (2021),
https://hdl.handle.net/21.15107/rcub_rims_623 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Folić, Radomir
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/387
AB  - This paper deals with the aspects of vibration analysis of 3D numerical water tower models with the explicitly generated 3D finite element (FE) solid fluid model that simulates the fluid-structure interaction (FSI). The development and implementation of the 3D FE solid fluid model in modelling and analysing the system response is extremely important, both in terms of determining the impulsive and convective hydrodynamic pressure, and in terms of overall sizing of the water tower. Vibration of the water tower is calculated based on the analysis of its eigenvibrations, analysis of eigenvibrations occurring when charging and discharging the water tower reservoir (SFA - Staged Fluid Analysis), Steady-State Analysis (SSA) in the frequency domain and the analysis of the system response in the time domain (THA - Time History Analysis), followed by the transformation of the frequency domain response using the Fast Fourier Transform (FFT). The analysis of eigenvalues using the Ritz vectors (Ritz analysis) and the Power Spectral Density Analysis (PSDA) are carried out as the means of additional control and with the purpose of identifying vibration periods. The system's stiffness matrix and mass matrix are corrected using the 3D FE solid fluid model for analysing the water tower vibrations. Effects of the system's increasing vibration period are determined for the partially charged reinforced concrete (RC) water tower reservoir, given the strong action of the fluid mass that is excited for convective hydrodynamic action (sloshing) due to the water tower dimensions and the amount of fluid contained in the reservoir in this case.
PB  - Institut za ispitivanje materijala, Beograd
PB  - Društvo za integritet i vek konstrukcija (DIVK)
T2  - Structural Integrity and Life
T1  - Numerical model of fluid-structure interaction for water tower analysis of vibrations
EP  - 200
IS  - 2
SP  - 190
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_rims_387
ER  - 

@article{
author = "Ćosić, Mladen and Folić, Radomir",
year = "2020",
abstract = "This paper deals with the aspects of vibration analysis of 3D numerical water tower models with the explicitly generated 3D finite element (FE) solid fluid model that simulates the fluid-structure interaction (FSI). The development and implementation of the 3D FE solid fluid model in modelling and analysing the system response is extremely important, both in terms of determining the impulsive and convective hydrodynamic pressure, and in terms of overall sizing of the water tower. Vibration of the water tower is calculated based on the analysis of its eigenvibrations, analysis of eigenvibrations occurring when charging and discharging the water tower reservoir (SFA - Staged Fluid Analysis), Steady-State Analysis (SSA) in the frequency domain and the analysis of the system response in the time domain (THA - Time History Analysis), followed by the transformation of the frequency domain response using the Fast Fourier Transform (FFT). The analysis of eigenvalues using the Ritz vectors (Ritz analysis) and the Power Spectral Density Analysis (PSDA) are carried out as the means of additional control and with the purpose of identifying vibration periods. The system's stiffness matrix and mass matrix are corrected using the 3D FE solid fluid model for analysing the water tower vibrations. Effects of the system's increasing vibration period are determined for the partially charged reinforced concrete (RC) water tower reservoir, given the strong action of the fluid mass that is excited for convective hydrodynamic action (sloshing) due to the water tower dimensions and the amount of fluid contained in the reservoir in this case.",
publisher = "Institut za ispitivanje materijala, Beograd, Društvo za integritet i vek konstrukcija (DIVK)",
journal = "Structural Integrity and Life",
title = "Numerical model of fluid-structure interaction for water tower analysis of vibrations",
pages = "200-190",
number = "2",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_rims_387"
}

Ćosić, M.,& Folić, R.. (2020). Numerical model of fluid-structure interaction for water tower analysis of vibrations. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 20(2), 190-200.
https://hdl.handle.net/21.15107/rcub_rims_387

Ćosić M, Folić R. Numerical model of fluid-structure interaction for water tower analysis of vibrations. in Structural Integrity and Life. 2020;20(2):190-200.
https://hdl.handle.net/21.15107/rcub_rims_387 .

Ćosić, Mladen, Folić, Radomir, "Numerical model of fluid-structure interaction for water tower analysis of vibrations" in Structural Integrity and Life, 20, no. 2 (2020):190-200,
https://hdl.handle.net/21.15107/rcub_rims_387 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Šušić, Nenad
AU  - Folić, Radomir
AU  - Folić, Boris
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/386
AB  - This paper formulates a mathematical model using the extrapolation of load-settlement curves with a rational function for analyzing the capacity of piles obtained from the static load test (SLT). In preliminary analyses, the extrapolation was based on the application of a number of mathematical functions that were gradually eliminated by iterative selection and filtering. The solution was obtained by extrapolation with a rational function. Using a rational function in the extrapolation of the load-settlement curve, a clearly identifiable part is obtained in which the asymptote is vertical, indicating the reached limit state of capacity in the soil and/or in the pile. The probabilistic analysis showed that no unique value for pile capacity was obtained, and that the spectrum of capacity values depends on the probability of occurrence of the corresponding event.
PB  - Springer, New York
T2  - Soil Mechanics and Foundation Engineering
T1  - Model of Probabilistic Analysis of Pile Capacity Based on the Extrapolation of Load-Settlement Curves
EP  - 378
IS  - 5
SP  - 370
VL  - 57
DO  - 10.1007/s11204-020-09680-1
ER  - 

@article{
author = "Ćosić, Mladen and Šušić, Nenad and Folić, Radomir and Folić, Boris",
year = "2020",
abstract = "This paper formulates a mathematical model using the extrapolation of load-settlement curves with a rational function for analyzing the capacity of piles obtained from the static load test (SLT). In preliminary analyses, the extrapolation was based on the application of a number of mathematical functions that were gradually eliminated by iterative selection and filtering. The solution was obtained by extrapolation with a rational function. Using a rational function in the extrapolation of the load-settlement curve, a clearly identifiable part is obtained in which the asymptote is vertical, indicating the reached limit state of capacity in the soil and/or in the pile. The probabilistic analysis showed that no unique value for pile capacity was obtained, and that the spectrum of capacity values depends on the probability of occurrence of the corresponding event.",
publisher = "Springer, New York",
journal = "Soil Mechanics and Foundation Engineering",
title = "Model of Probabilistic Analysis of Pile Capacity Based on the Extrapolation of Load-Settlement Curves",
pages = "378-370",
number = "5",
volume = "57",
doi = "10.1007/s11204-020-09680-1"
}

Ćosić, M., Šušić, N., Folić, R.,& Folić, B.. (2020). Model of Probabilistic Analysis of Pile Capacity Based on the Extrapolation of Load-Settlement Curves. in Soil Mechanics and Foundation Engineering
Springer, New York., 57(5), 370-378.
https://doi.org/10.1007/s11204-020-09680-1

Ćosić M, Šušić N, Folić R, Folić B. Model of Probabilistic Analysis of Pile Capacity Based on the Extrapolation of Load-Settlement Curves. in Soil Mechanics and Foundation Engineering. 2020;57(5):370-378.
doi:10.1007/s11204-020-09680-1 .

Ćosić, Mladen, Šušić, Nenad, Folić, Radomir, Folić, Boris, "Model of Probabilistic Analysis of Pile Capacity Based on the Extrapolation of Load-Settlement Curves" in Soil Mechanics and Foundation Engineering, 57, no. 5 (2020):370-378,
https://doi.org/10.1007/s11204-020-09680-1 . .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Božić-Tomić, Kristina
AU  - Šušić, Nenad
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/756
AB  - U radu su prikazani aspekti standardizacije i karakteristični primeri ispitivanja nosivosti šipova sa određenom analizom rezultata, pri čemu se metodologija ispitivanja oslanja na postojeće ASTM i sopstvene standarde, sopstvena znanja i iskustva, ali i na metodologiju ispitivanja prikazanu u naučnom radu Pile Integrity and Load Testing: Methodology and Classification. Ispitivanja šipova su sprovedena primenom sopstvene opreme sa licenciranim hardverima i softverima za test statičkog opterećenja šipa (SLT - Static Load Test) i test dinamičkog opterećenja šipa (DLT - Dynamic Load Test). Ukazano je na aspekte primene različitih oprema i metodologija ispitivanja u različitim situacijama. Takođe, ukazano je na potrebu izrade plana ispitivanja nosivosti šipova kada su u pitanju veliki i značajniji objekti.
T2  - Građevinski kalendar
T1  - Standardizacija, ispitivanje i analiza nosivosti šipova
EP  - 104
IS  - 51
SP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_rims_756
ER  - 

@article{
author = "Ćosić, Mladen and Božić-Tomić, Kristina and Šušić, Nenad",
year = "2019",
abstract = "U radu su prikazani aspekti standardizacije i karakteristični primeri ispitivanja nosivosti šipova sa određenom analizom rezultata, pri čemu se metodologija ispitivanja oslanja na postojeće ASTM i sopstvene standarde, sopstvena znanja i iskustva, ali i na metodologiju ispitivanja prikazanu u naučnom radu Pile Integrity and Load Testing: Methodology and Classification. Ispitivanja šipova su sprovedena primenom sopstvene opreme sa licenciranim hardverima i softverima za test statičkog opterećenja šipa (SLT - Static Load Test) i test dinamičkog opterećenja šipa (DLT - Dynamic Load Test). Ukazano je na aspekte primene različitih oprema i metodologija ispitivanja u različitim situacijama. Takođe, ukazano je na potrebu izrade plana ispitivanja nosivosti šipova kada su u pitanju veliki i značajniji objekti.",
journal = "Građevinski kalendar",
title = "Standardizacija, ispitivanje i analiza nosivosti šipova",
pages = "104-69",
number = "51",
url = "https://hdl.handle.net/21.15107/rcub_rims_756"
}

Ćosić, M., Božić-Tomić, K.,& Šušić, N.. (2019). Standardizacija, ispitivanje i analiza nosivosti šipova. in Građevinski kalendar(51), 69-104.
https://hdl.handle.net/21.15107/rcub_rims_756

Ćosić M, Božić-Tomić K, Šušić N. Standardizacija, ispitivanje i analiza nosivosti šipova. in Građevinski kalendar. 2019;(51):69-104.
https://hdl.handle.net/21.15107/rcub_rims_756 .

Ćosić, Mladen, Božić-Tomić, Kristina, Šušić, Nenad, "Standardizacija, ispitivanje i analiza nosivosti šipova" in Građevinski kalendar, no. 51 (2019):69-104,
https://hdl.handle.net/21.15107/rcub_rims_756 .

TY  - CONF
AU  - Folić, Boris
AU  - Folić, Radomir
AU  - Liolios, Angelos
AU  - Ćosić, Mladen
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/750
AB  - The paper presents a seismic analysis of the structure-pile-soil system, of a 2D RC frame. The analysis of individual system elements and some potential damage on two Vrancea accelerograms, VR77NS and VRfoc86NS are presented. The impact of the response spectra is provided for VR77NS, because the structure enters the resonant area and the damage increase considerably. Local drift diagrams during the earthquake, and the model damage featured as plastic hinges condition at the end of accelerograms are provided. It is indicated that it is necessary to introduce a dynamic interaction of the structural system, which includes not only the piles, but soil as well, because it became possible at the present level of scientific and technological progress of the human kind.
PB  - Association of civil engineers of Serbia (ACES)
C3  - 8th International Conference Geotechnics in Civil Engineering, Vrnjačka Banja, Serbia
T1  - Some Aspects of the Analysis of Pile Fondations Behaviour Under Seismic Action
EP  - 356
SP  - 343
UR  - https://hdl.handle.net/21.15107/rcub_rims_750
ER  - 

@conference{
author = "Folić, Boris and Folić, Radomir and Liolios, Angelos and Ćosić, Mladen",
year = "2019",
abstract = "The paper presents a seismic analysis of the structure-pile-soil system, of a 2D RC frame. The analysis of individual system elements and some potential damage on two Vrancea accelerograms, VR77NS and VRfoc86NS are presented. The impact of the response spectra is provided for VR77NS, because the structure enters the resonant area and the damage increase considerably. Local drift diagrams during the earthquake, and the model damage featured as plastic hinges condition at the end of accelerograms are provided. It is indicated that it is necessary to introduce a dynamic interaction of the structural system, which includes not only the piles, but soil as well, because it became possible at the present level of scientific and technological progress of the human kind.",
publisher = "Association of civil engineers of Serbia (ACES)",
journal = "8th International Conference Geotechnics in Civil Engineering, Vrnjačka Banja, Serbia",
title = "Some Aspects of the Analysis of Pile Fondations Behaviour Under Seismic Action",
pages = "356-343",
url = "https://hdl.handle.net/21.15107/rcub_rims_750"
}

Folić, B., Folić, R., Liolios, A.,& Ćosić, M.. (2019). Some Aspects of the Analysis of Pile Fondations Behaviour Under Seismic Action. in 8th International Conference Geotechnics in Civil Engineering, Vrnjačka Banja, Serbia
Association of civil engineers of Serbia (ACES)., 343-356.
https://hdl.handle.net/21.15107/rcub_rims_750

Folić B, Folić R, Liolios A, Ćosić M. Some Aspects of the Analysis of Pile Fondations Behaviour Under Seismic Action. in 8th International Conference Geotechnics in Civil Engineering, Vrnjačka Banja, Serbia. 2019;:343-356.
https://hdl.handle.net/21.15107/rcub_rims_750 .

Folić, Boris, Folić, Radomir, Liolios, Angelos, Ćosić, Mladen, "Some Aspects of the Analysis of Pile Fondations Behaviour Under Seismic Action" in 8th International Conference Geotechnics in Civil Engineering, Vrnjačka Banja, Serbia (2019):343-356,
https://hdl.handle.net/21.15107/rcub_rims_750 .

TY  - CONF
AU  - Folić, Boris
AU  - Ćosić, Mladen
AU  - Brčić, Stanko
AU  - Čokić, Miloš
AU  - Sedmak, Simon
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/749
AB  - This paper presents the manner of modeling the aftershock (in an earthquake), the phenomenon whose significance has been noted in the second half of the 20th century. Itlists the constructional systems in which the consideration of the aftershock is important. It shows in more detail the model of the skeletal RC construction, i.e. the 2D RC facade frame constructed on the 60cm-diameter drilled RC piles. The dynamic interaction soil-pile, i.e. the non-linear behaviour of the soil is modelled with the horizontal p-y curves for sand, applying multiplastic link elements. For the accelerogram El Centro during time history (TH) the global and (local) drift, the condition of plastic hinges were considered.
PB  - Association of civil engineers of Serbia (ACES)
C3  - Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 10th International Conference, Zlatibor, Serbia
T1  - The effect of aftershock on 2D RC frame founded on piles with P-Y curves
EP  - 386
SP  - 375
UR  - https://hdl.handle.net/21.15107/rcub_rims_749
ER  - 

@conference{
author = "Folić, Boris and Ćosić, Mladen and Brčić, Stanko and Čokić, Miloš and Sedmak, Simon",
year = "2019",
abstract = "This paper presents the manner of modeling the aftershock (in an earthquake), the phenomenon whose significance has been noted in the second half of the 20th century. Itlists the constructional systems in which the consideration of the aftershock is important. It shows in more detail the model of the skeletal RC construction, i.e. the 2D RC facade frame constructed on the 60cm-diameter drilled RC piles. The dynamic interaction soil-pile, i.e. the non-linear behaviour of the soil is modelled with the horizontal p-y curves for sand, applying multiplastic link elements. For the accelerogram El Centro during time history (TH) the global and (local) drift, the condition of plastic hinges were considered.",
publisher = "Association of civil engineers of Serbia (ACES)",
journal = "Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 10th International Conference, Zlatibor, Serbia",
title = "The effect of aftershock on 2D RC frame founded on piles with P-Y curves",
pages = "386-375",
url = "https://hdl.handle.net/21.15107/rcub_rims_749"
}

Folić, B., Ćosić, M., Brčić, S., Čokić, M.,& Sedmak, S.. (2019). The effect of aftershock on 2D RC frame founded on piles with P-Y curves. in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 10th International Conference, Zlatibor, Serbia
Association of civil engineers of Serbia (ACES)., 375-386.
https://hdl.handle.net/21.15107/rcub_rims_749

Folić B, Ćosić M, Brčić S, Čokić M, Sedmak S. The effect of aftershock on 2D RC frame founded on piles with P-Y curves. in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 10th International Conference, Zlatibor, Serbia. 2019;:375-386.
https://hdl.handle.net/21.15107/rcub_rims_749 .

Folić, Boris, Ćosić, Mladen, Brčić, Stanko, Čokić, Miloš, Sedmak, Simon, "The effect of aftershock on 2D RC frame founded on piles with P-Y curves" in Assessment of the Condition, Maintenance and Rehabilitation of Buildings and Settlements, 10th International Conference, Zlatibor, Serbia (2019):375-386,
https://hdl.handle.net/21.15107/rcub_rims_749 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Božić-Tomić, Kristina
AU  - Šušić, Nenad
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/688
AB  - U radu su prikazani aspekti standardizacije i karakteristični primeri
ispitivanja integriteta šipova sa analizom rezultata, pri čemu se
metodologija ispitivanja oslanja na postojeće ASTM i sopstvene
standarde, ali i na metodologiju ispitivanja prikazanu u naučnim radovima
Pile Integrity and Load Testing: Methodology and Classification i Pile
Integrity Testing: Testing and Results Analysis. Ispitivanja šipova
sprovedena su primenom licenciranih oprema za test integriteta šipa sa
senzorom (SIT) i test integriteta šipa sa sondama (CSL). Ispitivanjima su
prikazane korektne i problematične situacije, koje se pojavljuju prilikom
analize integriteta šipova. Ukazano je na aspekte primene talasne teorije,
ali i na procesiranja signala. Takođe, posebno je skrenuta pažnja na
potrebu izrade plana ispitivanja integriteta šipova kod objekata s velikim
brojem šipova.
PB  - Savez inženjera i tehničara Srbije
T2  - Građevinski kalendar
T1  - Standardizacija, ispitivanje i analiza integriteta šipova
EP  - 68
IS  - 51
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_rims_688
ER  - 

@article{
author = "Ćosić, Mladen and Božić-Tomić, Kristina and Šušić, Nenad",
year = "2019",
abstract = "U radu su prikazani aspekti standardizacije i karakteristični primeri
ispitivanja integriteta šipova sa analizom rezultata, pri čemu se
metodologija ispitivanja oslanja na postojeće ASTM i sopstvene
standarde, ali i na metodologiju ispitivanja prikazanu u naučnim radovima
Pile Integrity and Load Testing: Methodology and Classification i Pile
Integrity Testing: Testing and Results Analysis. Ispitivanja šipova
sprovedena su primenom licenciranih oprema za test integriteta šipa sa
senzorom (SIT) i test integriteta šipa sa sondama (CSL). Ispitivanjima su
prikazane korektne i problematične situacije, koje se pojavljuju prilikom
analize integriteta šipova. Ukazano je na aspekte primene talasne teorije,
ali i na procesiranja signala. Takođe, posebno je skrenuta pažnja na
potrebu izrade plana ispitivanja integriteta šipova kod objekata s velikim
brojem šipova.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "Građevinski kalendar",
title = "Standardizacija, ispitivanje i analiza integriteta šipova",
pages = "68-34",
number = "51",
url = "https://hdl.handle.net/21.15107/rcub_rims_688"
}

Ćosić, M., Božić-Tomić, K.,& Šušić, N.. (2019). Standardizacija, ispitivanje i analiza integriteta šipova. in Građevinski kalendar
Savez inženjera i tehničara Srbije.(51), 34-68.
https://hdl.handle.net/21.15107/rcub_rims_688

Ćosić M, Božić-Tomić K, Šušić N. Standardizacija, ispitivanje i analiza integriteta šipova. in Građevinski kalendar. 2019;(51):34-68.
https://hdl.handle.net/21.15107/rcub_rims_688 .

Ćosić, Mladen, Božić-Tomić, Kristina, Šušić, Nenad, "Standardizacija, ispitivanje i analiza integriteta šipova" in Građevinski kalendar, no. 51 (2019):34-68,
https://hdl.handle.net/21.15107/rcub_rims_688 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Božić-Tomić, Kristina
AU  - Šušić, Nenad
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/375
AB  - U radu su prikazani karakteristični primeri ispitivanja integriteta šipova sa analizom rezultata, pri čemu se metodologija ispitivanja oslanja na postojeće ASTM standarde, ali i na metodologiju ispitivanja prikazanu u naučnom radu "Ispitivanje integriteta i nosivosti šipova: metodologija i klasifikacija", koji je publikovan u ovom časopisu. Ispitivanja šipova sprovedena su primenom licenciranih oprema za test integriteta šipa sa senzorom (SIT) i test integriteta šipa sa sondama (CSL). Ispitivanjima su prikazane korektne i problematične situacije, koje se pojavljuju prilikom analize integriteta šipova. Ukazano je na aspekte primene talasne teorije, ali i na procesiranja signala i numeričke analize. Takođe, posebno je skrenuta pažnja na potrebu izrade plana ispitivanja integriteta šipova kod objekata s velikim brojem šipova.
AB  - The paper presents typical examples of pile integrity testing and the results analysis, whereby the testing methodology relies on existing ASTM standards, as well as on the testing methodology presented in the scientific paper Pile Integrity and Load Testing: Methodology and Classification, published in this journal. The pile tests were conducted using licensed equipment for Sonic Integrity Test (SIT) and Crosshole Sonic Logging (CSL). The tests have shown the correct and problematic situations that arise when analyzing pile integrity. Some aspects of the wave theory implementation, but also of signal processing and numerical analysis have been indicated. Also, the need to develop a plan for testing the integrity of piles in structures with a large number of piles has been emphasized.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Ispitivanje integriteta šipova - testiranje i analiza rezultata
T1  - Pile integrity testing: Testing and results analysis
EP  - 59
IS  - 3
SP  - 39
VL  - 62
DO  - 10.5937/GRMK1903039C
ER  - 

@article{
author = "Ćosić, Mladen and Božić-Tomić, Kristina and Šušić, Nenad",
year = "2019",
abstract = "U radu su prikazani karakteristični primeri ispitivanja integriteta šipova sa analizom rezultata, pri čemu se metodologija ispitivanja oslanja na postojeće ASTM standarde, ali i na metodologiju ispitivanja prikazanu u naučnom radu "Ispitivanje integriteta i nosivosti šipova: metodologija i klasifikacija", koji je publikovan u ovom časopisu. Ispitivanja šipova sprovedena su primenom licenciranih oprema za test integriteta šipa sa senzorom (SIT) i test integriteta šipa sa sondama (CSL). Ispitivanjima su prikazane korektne i problematične situacije, koje se pojavljuju prilikom analize integriteta šipova. Ukazano je na aspekte primene talasne teorije, ali i na procesiranja signala i numeričke analize. Takođe, posebno je skrenuta pažnja na potrebu izrade plana ispitivanja integriteta šipova kod objekata s velikim brojem šipova., The paper presents typical examples of pile integrity testing and the results analysis, whereby the testing methodology relies on existing ASTM standards, as well as on the testing methodology presented in the scientific paper Pile Integrity and Load Testing: Methodology and Classification, published in this journal. The pile tests were conducted using licensed equipment for Sonic Integrity Test (SIT) and Crosshole Sonic Logging (CSL). The tests have shown the correct and problematic situations that arise when analyzing pile integrity. Some aspects of the wave theory implementation, but also of signal processing and numerical analysis have been indicated. Also, the need to develop a plan for testing the integrity of piles in structures with a large number of piles has been emphasized.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Ispitivanje integriteta šipova - testiranje i analiza rezultata, Pile integrity testing: Testing and results analysis",
pages = "59-39",
number = "3",
volume = "62",
doi = "10.5937/GRMK1903039C"
}

Ćosić, M., Božić-Tomić, K.,& Šušić, N.. (2019). Ispitivanje integriteta šipova - testiranje i analiza rezultata. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 62(3), 39-59.
https://doi.org/10.5937/GRMK1903039C

Ćosić M, Božić-Tomić K, Šušić N. Ispitivanje integriteta šipova - testiranje i analiza rezultata. in Građevinski materijali i konstrukcije. 2019;62(3):39-59.
doi:10.5937/GRMK1903039C .

Ćosić, Mladen, Božić-Tomić, Kristina, Šušić, Nenad, "Ispitivanje integriteta šipova - testiranje i analiza rezultata" in Građevinski materijali i konstrukcije, 62, no. 3 (2019):39-59,
https://doi.org/10.5937/GRMK1903039C . .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Božić-Tomić, Kristina
AU  - Šušić, Nenad
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/364
AB  - U radu su prikazane metodologija i klasifikacija ispitivanja integriteta i nosivosti šipova, u saglasnosti sa važećim inostranim standardima, ali i sa sopstvenim definisanim segmentima unapređivanja standarda i sopstvenim definicijama određenih ključnih elemenata. Klasifikacija je sprovedena po tipovima testova u kojima su jasno definisani: tok ispitivanja šipova, metode analize i obrade rezultata ispitivanja. Pored osnovne podele testova ispitivanja šipova na testove integriteta i testove nosivosti, dodatno je definisana i grupa testova kontrole bušotine kod bušenih šipova, s obzirom na to što je za pravilno formiranje bušotine, kada je reč o bušenim šipovima, neophodno prethodno ispuniti određene kvalitativno- kvantitativne kriterijume. Ovako prikazane metodologija i klasifikacija ispitivanja integriteta i nosivosti šipova prvenstveno služe za edukativne svrhe inženjera građevine i geotehnike koji se bave ovom problematikom, da dodatno donese novine na ovom polju ispitivanja i da dodatno pojasne sve elemente ispitivanja, budući da se u praksi vrlo često susreću protivrečna mišljenja i nesuglasice oko detalja ispitivanja.
AB  - The paper presents the methodology and classification of pile integrity and load testing, in compliance with current foreign standards, as well as our own defined segments of standard improvement and our own definitions of certain key elements. The classification has been conducted according to the test types which clearly define the pile testing process, analysis methods, and test results processing. Beside the basic division of pile testing to integrity tests and load tests, there is also an additionally defined group of shaft control tests in the case of bored piles, since for the proper shaft formation, when it comes to bored piles, certain qualitative-quantitative criteria must be fulfilled beforehand. Presented in this way, the methodology and classification of pile integrity and load tests serves, primarily, an educational purpose for civil and geotechnics engineers who deal with this issue, to additionally introduce innovations in this field of testing and clarify all the elements of the testing since contradictory opinions and disagreements regarding the testing details are quite common in practice.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Ispitivanje integriteta i nosivosti šipova - metodologija i klasifikacija
T1  - Pile integrity and load testing: Methodology and classification
EP  - 68
IS  - 1
SP  - 43
VL  - 62
DO  - 10.5937/GRMK1901043C
ER  - 

@article{
author = "Ćosić, Mladen and Božić-Tomić, Kristina and Šušić, Nenad",
year = "2019",
abstract = "U radu su prikazane metodologija i klasifikacija ispitivanja integriteta i nosivosti šipova, u saglasnosti sa važećim inostranim standardima, ali i sa sopstvenim definisanim segmentima unapređivanja standarda i sopstvenim definicijama određenih ključnih elemenata. Klasifikacija je sprovedena po tipovima testova u kojima su jasno definisani: tok ispitivanja šipova, metode analize i obrade rezultata ispitivanja. Pored osnovne podele testova ispitivanja šipova na testove integriteta i testove nosivosti, dodatno je definisana i grupa testova kontrole bušotine kod bušenih šipova, s obzirom na to što je za pravilno formiranje bušotine, kada je reč o bušenim šipovima, neophodno prethodno ispuniti određene kvalitativno- kvantitativne kriterijume. Ovako prikazane metodologija i klasifikacija ispitivanja integriteta i nosivosti šipova prvenstveno služe za edukativne svrhe inženjera građevine i geotehnike koji se bave ovom problematikom, da dodatno donese novine na ovom polju ispitivanja i da dodatno pojasne sve elemente ispitivanja, budući da se u praksi vrlo često susreću protivrečna mišljenja i nesuglasice oko detalja ispitivanja., The paper presents the methodology and classification of pile integrity and load testing, in compliance with current foreign standards, as well as our own defined segments of standard improvement and our own definitions of certain key elements. The classification has been conducted according to the test types which clearly define the pile testing process, analysis methods, and test results processing. Beside the basic division of pile testing to integrity tests and load tests, there is also an additionally defined group of shaft control tests in the case of bored piles, since for the proper shaft formation, when it comes to bored piles, certain qualitative-quantitative criteria must be fulfilled beforehand. Presented in this way, the methodology and classification of pile integrity and load tests serves, primarily, an educational purpose for civil and geotechnics engineers who deal with this issue, to additionally introduce innovations in this field of testing and clarify all the elements of the testing since contradictory opinions and disagreements regarding the testing details are quite common in practice.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Ispitivanje integriteta i nosivosti šipova - metodologija i klasifikacija, Pile integrity and load testing: Methodology and classification",
pages = "68-43",
number = "1",
volume = "62",
doi = "10.5937/GRMK1901043C"
}

Ćosić, M., Božić-Tomić, K.,& Šušić, N.. (2019). Ispitivanje integriteta i nosivosti šipova - metodologija i klasifikacija. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 62(1), 43-68.
https://doi.org/10.5937/GRMK1901043C

Ćosić M, Božić-Tomić K, Šušić N. Ispitivanje integriteta i nosivosti šipova - metodologija i klasifikacija. in Građevinski materijali i konstrukcije. 2019;62(1):43-68.
doi:10.5937/GRMK1901043C .

Ćosić, Mladen, Božić-Tomić, Kristina, Šušić, Nenad, "Ispitivanje integriteta i nosivosti šipova - metodologija i klasifikacija" in Građevinski materijali i konstrukcije, 62, no. 1 (2019):43-68,
https://doi.org/10.5937/GRMK1901043C . .

TY  - CONF
AU  - Folić, Boris
AU  - Brčić, Stanko
AU  - Ćosić, Mladen
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/747
AB  - The paper presents a seismic analysis of a 2D reinforced concrete (RC) frame founded on piles. The soil-pile interaction is represented by the so-called p-y curves. At the base, the piles may be both fixed or elastically supported. P-y curves are determined according to Rees, Cox and Matlock model for sand. Using SAP 2000, p-y curves are applied on both sides of the pile, as the link elements. Link elements are assumed as a multi-linear plastic type, i.e. as hysteresis envelopes according to the Takeda model. The linear part of the link element corresponds to initial stiffness of the p-y curve. Curves are exposed to compression only and to almost negligible tension. In the analysis of seismic action, the curve coefficients for a repeated, i.e. cyclic load were assumed. In such a way, numerical model asymptotically simulates the real actions and seismic response of structures in dynamic interaction of the pile-structure-soil system. This model offers many options for further development and study of seismic performance.
PB  - Savez građevinskih inženjera Srbije SGIS
PB  - Društvo za zemljotresno inženjerstvo Srbije
C3  - 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia
T1  - Analysis of Interaction of 2D RC Frame Model Using p-y Curves Upon Piles
EP  - 406
SP  - 397
UR  - https://hdl.handle.net/21.15107/rcub_rims_747
ER  - 

@conference{
author = "Folić, Boris and Brčić, Stanko and Ćosić, Mladen",
year = "2018",
abstract = "The paper presents a seismic analysis of a 2D reinforced concrete (RC) frame founded on piles. The soil-pile interaction is represented by the so-called p-y curves. At the base, the piles may be both fixed or elastically supported. P-y curves are determined according to Rees, Cox and Matlock model for sand. Using SAP 2000, p-y curves are applied on both sides of the pile, as the link elements. Link elements are assumed as a multi-linear plastic type, i.e. as hysteresis envelopes according to the Takeda model. The linear part of the link element corresponds to initial stiffness of the p-y curve. Curves are exposed to compression only and to almost negligible tension. In the analysis of seismic action, the curve coefficients for a repeated, i.e. cyclic load were assumed. In such a way, numerical model asymptotically simulates the real actions and seismic response of structures in dynamic interaction of the pile-structure-soil system. This model offers many options for further development and study of seismic performance.",
publisher = "Savez građevinskih inženjera Srbije SGIS, Društvo za zemljotresno inženjerstvo Srbije",
journal = "6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia",
title = "Analysis of Interaction of 2D RC Frame Model Using p-y Curves Upon Piles",
pages = "406-397",
url = "https://hdl.handle.net/21.15107/rcub_rims_747"
}

Folić, B., Brčić, S.,& Ćosić, M.. (2018). Analysis of Interaction of 2D RC Frame Model Using p-y Curves Upon Piles. in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia
Savez građevinskih inženjera Srbije SGIS., 397-406.
https://hdl.handle.net/21.15107/rcub_rims_747

Folić B, Brčić S, Ćosić M. Analysis of Interaction of 2D RC Frame Model Using p-y Curves Upon Piles. in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia. 2018;:397-406.
https://hdl.handle.net/21.15107/rcub_rims_747 .

Folić, Boris, Brčić, Stanko, Ćosić, Mladen, "Analysis of Interaction of 2D RC Frame Model Using p-y Curves Upon Piles" in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia (2018):397-406,
https://hdl.handle.net/21.15107/rcub_rims_747 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Brčić, Stanko
AU  - Šušić, Nenad
AU  - Folić, Radomir
AU  - Božić-Tomić, Kristina
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/748
AB  - The paper is presenting a mathematical formulation of an originally developed ground motion record surface (GMRS) and response spectra surface (RSS) for the presentation of 2D seismic ground motion records (GMR) and the corresponding response spectra (RS), respectively. These surfaces are constructed by transformation from 2D polar coordinate system to a 3D cylindrical coordinate system and then to the 3D orthogonal coordinate system. The principle of application of three orthogonal coordinates for each discrete value is used in order to achieve easy manipulation and interpolation of spatial surface. Scaling of accelerograms was carried out using two procedures: the Least Square Method (LSM) and Spectral Matching (SM).
PB  - Association of Civil Engineers of Serbia, Kraljevo
C3  - 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia
T1  - Development of ground motion record surface and response spectra surface
EP  - 354
SP  - 343
UR  - https://hdl.handle.net/21.15107/rcub_rims_748
ER  - 

@conference{
author = "Ćosić, Mladen and Brčić, Stanko and Šušić, Nenad and Folić, Radomir and Božić-Tomić, Kristina",
year = "2018",
abstract = "The paper is presenting a mathematical formulation of an originally developed ground motion record surface (GMRS) and response spectra surface (RSS) for the presentation of 2D seismic ground motion records (GMR) and the corresponding response spectra (RS), respectively. These surfaces are constructed by transformation from 2D polar coordinate system to a 3D cylindrical coordinate system and then to the 3D orthogonal coordinate system. The principle of application of three orthogonal coordinates for each discrete value is used in order to achieve easy manipulation and interpolation of spatial surface. Scaling of accelerograms was carried out using two procedures: the Least Square Method (LSM) and Spectral Matching (SM).",
publisher = "Association of Civil Engineers of Serbia, Kraljevo",
journal = "6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia",
title = "Development of ground motion record surface and response spectra surface",
pages = "354-343",
url = "https://hdl.handle.net/21.15107/rcub_rims_748"
}

Ćosić, M., Brčić, S., Šušić, N., Folić, R.,& Božić-Tomić, K.. (2018). Development of ground motion record surface and response spectra surface. in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia
Association of Civil Engineers of Serbia, Kraljevo., 343-354.
https://hdl.handle.net/21.15107/rcub_rims_748

Ćosić M, Brčić S, Šušić N, Folić R, Božić-Tomić K. Development of ground motion record surface and response spectra surface. in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia. 2018;:343-354.
https://hdl.handle.net/21.15107/rcub_rims_748 .

Ćosić, Mladen, Brčić, Stanko, Šušić, Nenad, Folić, Radomir, Božić-Tomić, Kristina, "Development of ground motion record surface and response spectra surface" in 6th International Conference of Earthquake Engineering and Engineering Seismology, Kraljevo, Serbia (2018):343-354,
https://hdl.handle.net/21.15107/rcub_rims_748 .