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  - 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  - 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  - Folić, Boris
AU  - Lađinović, Đorđe
AU  - Brujić, Zoran
AU  - Ćosić, Mladen
PY  - 2016
UR  - http://rims.institutims.rs/handle/123456789/744
AB  - The paper analyzes the effects of pile-soil-pile interaction on the transverse bridge frame on specific example of building. It considers a small group of piles arranged in a single row. The columns are continuously set on piles over the RC blocks (raft beams). The typical pilesoil conditions were varied. Some phases of construction, typical of this type of calculation, have been included. The interaction was analyzed for homogeneous and linear elastic soil (semi-space), with some other models of analyzing pile-soil interaction were also indicated. The paper also presents redistribution of forces depending on the stiffness of the raft beams or superstructure. The calculation parameters were introduced in mathematical model using a simplified method.
PB  - Savez građevinskih inženjera Srbije SGIS
C3  - 5th International Conference of Earthquake Engineering and Engineering Seismology, Sremski Karlovci, Serbia
T1  - Pile-Soil-Pile Interaction in Designing the Foundation of RC Structures
EP  - 386
SP  - 379
UR  - https://hdl.handle.net/21.15107/rcub_rims_744
ER  - 

@conference{
author = "Folić, Boris and Lađinović, Đorđe and Brujić, Zoran and Ćosić, Mladen",
year = "2016",
abstract = "The paper analyzes the effects of pile-soil-pile interaction on the transverse bridge frame on specific example of building. It considers a small group of piles arranged in a single row. The columns are continuously set on piles over the RC blocks (raft beams). The typical pilesoil conditions were varied. Some phases of construction, typical of this type of calculation, have been included. The interaction was analyzed for homogeneous and linear elastic soil (semi-space), with some other models of analyzing pile-soil interaction were also indicated. The paper also presents redistribution of forces depending on the stiffness of the raft beams or superstructure. The calculation parameters were introduced in mathematical model using a simplified method.",
publisher = "Savez građevinskih inženjera Srbije SGIS",
journal = "5th International Conference of Earthquake Engineering and Engineering Seismology, Sremski Karlovci, Serbia",
title = "Pile-Soil-Pile Interaction in Designing the Foundation of RC Structures",
pages = "386-379",
url = "https://hdl.handle.net/21.15107/rcub_rims_744"
}

Folić, B., Lađinović, Đ., Brujić, Z.,& Ćosić, M.. (2016). Pile-Soil-Pile Interaction in Designing the Foundation of RC Structures. in 5th International Conference of Earthquake Engineering and Engineering Seismology, Sremski Karlovci, Serbia
Savez građevinskih inženjera Srbije SGIS., 379-386.
https://hdl.handle.net/21.15107/rcub_rims_744

Folić B, Lađinović Đ, Brujić Z, Ćosić M. Pile-Soil-Pile Interaction in Designing the Foundation of RC Structures. in 5th International Conference of Earthquake Engineering and Engineering Seismology, Sremski Karlovci, Serbia. 2016;:379-386.
https://hdl.handle.net/21.15107/rcub_rims_744 .

Folić, Boris, Lađinović, Đorđe, Brujić, Zoran, Ćosić, Mladen, "Pile-Soil-Pile Interaction in Designing the Foundation of RC Structures" in 5th International Conference of Earthquake Engineering and Engineering Seismology, Sremski Karlovci, Serbia (2016):379-386,
https://hdl.handle.net/21.15107/rcub_rims_744 .

TY  - CONF
AU  - Ćosić, Mladen
AU  - Folić, Radomir
AU  - Folić, Boris
PY  - 2016
UR  - http://rims.institutims.rs/handle/123456789/292
AB  - The paper presents a multidisciplinary approach to the assessment of seismic performances based on the Performance-Based Earthquake Engineering (PBEE), taking into account the multi-criteria optimization theory in analyzing the priority methods for bridge rehabilitation/strengthening. One bridge model was subjected to nonlinear static pushover analyses (NSPA), target displacement analyses using the spectrum capacity method (CSM), vulnerability analyses, and reliability analyses, while for a damaged bridge, in addition to be considered using the above methods, was also analyzed using the VIKOR method of multi criteria optimization. Seismic performances were determined based on monitoring the system's plastification and analyzing the relevant parameters for the level of target displacement, such as target displacement, total shear force, spectral displacement, spectral acceleration, vibration period, damping and ductility. The phases of damage were considered using the probabilistic analysis of vulnerability and reliability: slight, moderate, extensive and complete, as a function of system ductility.
PB  - Elsevier Science Bv, Amsterdam
C3  - Bridges in Danube Basin 2016 - New Trends in Bridge Engineering and Efficient Solution for Large And
T1  - Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory
EP  - 90
SP  - 83
VL  - 156
DO  - 10.1016/j.proeng.2016.08.271
ER  - 

@conference{
author = "Ćosić, Mladen and Folić, Radomir and Folić, Boris",
year = "2016",
abstract = "The paper presents a multidisciplinary approach to the assessment of seismic performances based on the Performance-Based Earthquake Engineering (PBEE), taking into account the multi-criteria optimization theory in analyzing the priority methods for bridge rehabilitation/strengthening. One bridge model was subjected to nonlinear static pushover analyses (NSPA), target displacement analyses using the spectrum capacity method (CSM), vulnerability analyses, and reliability analyses, while for a damaged bridge, in addition to be considered using the above methods, was also analyzed using the VIKOR method of multi criteria optimization. Seismic performances were determined based on monitoring the system's plastification and analyzing the relevant parameters for the level of target displacement, such as target displacement, total shear force, spectral displacement, spectral acceleration, vibration period, damping and ductility. The phases of damage were considered using the probabilistic analysis of vulnerability and reliability: slight, moderate, extensive and complete, as a function of system ductility.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Bridges in Danube Basin 2016 - New Trends in Bridge Engineering and Efficient Solution for Large And",
title = "Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory",
pages = "90-83",
volume = "156",
doi = "10.1016/j.proeng.2016.08.271"
}

Ćosić, M., Folić, R.,& Folić, B.. (2016). Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory. in Bridges in Danube Basin 2016 - New Trends in Bridge Engineering and Efficient Solution for Large And
Elsevier Science Bv, Amsterdam., 156, 83-90.
https://doi.org/10.1016/j.proeng.2016.08.271

Ćosić M, Folić R, Folić B. Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory. in Bridges in Danube Basin 2016 - New Trends in Bridge Engineering and Efficient Solution for Large And. 2016;156:83-90.
doi:10.1016/j.proeng.2016.08.271 .

Ćosić, Mladen, Folić, Radomir, Folić, Boris, "Multidisciplinary approach to the assessment of seismic performances and rehabilitation of bridges: nonlinear analyses, probability theory and optimization theory" in Bridges in Danube Basin 2016 - New Trends in Bridge Engineering and Efficient Solution for Large And, 156 (2016):83-90,
https://doi.org/10.1016/j.proeng.2016.08.271 . .

TY  - CONF
AU  - Folić, Radomir
AU  - Ćosić, Mladen
AU  - Folić, Boris
PY  - 2015
UR  - http://rims.institutims.rs/handle/123456789/740
AB  - This paper presents the aspects of damping modelling in structural analysis through the systematization of damping types and flowcharts, depending on the type of analysis applied: linear and non-linear, static and dynamic. Damping has been systematized based on the way it was introduced into calculations, i.e. over material damping, link element damping and damping directly introduced into the analyses which are conducted in capacitive, time and frequency domains. In the process of creating numerical structural models, the type of damping and the way of its introduction into structural analysis can be very efficiently selected by applying the flow charts developed. By applying the developed flowcharts, alternative approaches to the introduction of damping into structural analysis can also be defined
PB  - Higher School Of Civil Engineering (VSU) 'L.Karavelov'-Sofia, Bugarska
C3  - 15th International Science Conference VSU, Sofia, Bulgaria
T1  - Damping Models for Flow Chart Based Structural Analysis
EP  - 164
IS  - 1
SP  - 155
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rims_740
ER  - 

@conference{
author = "Folić, Radomir and Ćosić, Mladen and Folić, Boris",
year = "2015",
abstract = "This paper presents the aspects of damping modelling in structural analysis through the systematization of damping types and flowcharts, depending on the type of analysis applied: linear and non-linear, static and dynamic. Damping has been systematized based on the way it was introduced into calculations, i.e. over material damping, link element damping and damping directly introduced into the analyses which are conducted in capacitive, time and frequency domains. In the process of creating numerical structural models, the type of damping and the way of its introduction into structural analysis can be very efficiently selected by applying the flow charts developed. By applying the developed flowcharts, alternative approaches to the introduction of damping into structural analysis can also be defined",
publisher = "Higher School Of Civil Engineering (VSU) 'L.Karavelov'-Sofia, Bugarska",
journal = "15th International Science Conference VSU, Sofia, Bulgaria",
title = "Damping Models for Flow Chart Based Structural Analysis",
pages = "164-155",
number = "1",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_rims_740"
}

Folić, R., Ćosić, M.,& Folić, B.. (2015). Damping Models for Flow Chart Based Structural Analysis. in 15th International Science Conference VSU, Sofia, Bulgaria
Higher School Of Civil Engineering (VSU) 'L.Karavelov'-Sofia, Bugarska., 1(1), 155-164.
https://hdl.handle.net/21.15107/rcub_rims_740

Folić R, Ćosić M, Folić B. Damping Models for Flow Chart Based Structural Analysis. in 15th International Science Conference VSU, Sofia, Bulgaria. 2015;1(1):155-164.
https://hdl.handle.net/21.15107/rcub_rims_740 .

Folić, Radomir, Ćosić, Mladen, Folić, Boris, "Damping Models for Flow Chart Based Structural Analysis" in 15th International Science Conference VSU, Sofia, Bulgaria, 1, no. 1 (2015):155-164,
https://hdl.handle.net/21.15107/rcub_rims_740 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Folić, Boris
AU  - Folić, Radomir
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/763
AB  - This paper deals with the development of a discrete numerical 2D and 3D solid pile model with a discontinuity and defects to simulate non-destructive testing using the pile integrity test (PIT). The pile discontinuity and defects were modelled by reducing the specific finite elements and the elastic modulus of concrete. The wave-propagation response of the pile was analyzed based on a step-by-step numerical integration using the Hilber-Hughes-Taylor (HHT) method in the time domain. The concept of a system-response analysis was originally formulated based on the integration of individual reflectograms into a reflectogram surface, which is generated in a 3D cylindrical coordinate system. The use of reflectogram surfaces enables an understanding of wave propagation based on their velocity to a higher level than is usually the case with standard, one-dimensional reflectograms. Changes in the velocity responses on the reflectogram, shifting from a positive to a negative value, point to the locations of discontinuities and defects in the discrete 3D pile model, and there is a clear difference in the reflectograms, depending on the position of the measuring point. The study defines the typological models of the reflectogram: without discontinuities and defects, pile-head defect, defect in the middle of the pile length or a reduced modulus of elasticity in the middle of the pile length, pile-base defect or reduced modulus of elasticity in the pile-base zone and reduced modulus of elasticity in the pile-head zone.
PB  - University of Maribor
T2  - Acta Geotechnica Slovenica
T1  - Numerical Simulation of the Pile Integrity Test on Defected Piles
EP  - 19
IS  - 2
SP  - 5
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_rims_763
ER  - 

@article{
author = "Ćosić, Mladen and Folić, Boris and Folić, Radomir",
year = "2014",
abstract = "This paper deals with the development of a discrete numerical 2D and 3D solid pile model with a discontinuity and defects to simulate non-destructive testing using the pile integrity test (PIT). The pile discontinuity and defects were modelled by reducing the specific finite elements and the elastic modulus of concrete. The wave-propagation response of the pile was analyzed based on a step-by-step numerical integration using the Hilber-Hughes-Taylor (HHT) method in the time domain. The concept of a system-response analysis was originally formulated based on the integration of individual reflectograms into a reflectogram surface, which is generated in a 3D cylindrical coordinate system. The use of reflectogram surfaces enables an understanding of wave propagation based on their velocity to a higher level than is usually the case with standard, one-dimensional reflectograms. Changes in the velocity responses on the reflectogram, shifting from a positive to a negative value, point to the locations of discontinuities and defects in the discrete 3D pile model, and there is a clear difference in the reflectograms, depending on the position of the measuring point. The study defines the typological models of the reflectogram: without discontinuities and defects, pile-head defect, defect in the middle of the pile length or a reduced modulus of elasticity in the middle of the pile length, pile-base defect or reduced modulus of elasticity in the pile-base zone and reduced modulus of elasticity in the pile-head zone.",
publisher = "University of Maribor",
journal = "Acta Geotechnica Slovenica",
title = "Numerical Simulation of the Pile Integrity Test on Defected Piles",
pages = "19-5",
number = "2",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_rims_763"
}

Ćosić, M., Folić, B.,& Folić, R.. (2014). Numerical Simulation of the Pile Integrity Test on Defected Piles. in Acta Geotechnica Slovenica
University of Maribor., 11(2), 5-19.
https://hdl.handle.net/21.15107/rcub_rims_763

Ćosić M, Folić B, Folić R. Numerical Simulation of the Pile Integrity Test on Defected Piles. in Acta Geotechnica Slovenica. 2014;11(2):5-19.
https://hdl.handle.net/21.15107/rcub_rims_763 .

Ćosić, Mladen, Folić, Boris, Folić, Radomir, "Numerical Simulation of the Pile Integrity Test on Defected Piles" in Acta Geotechnica Slovenica, 11, no. 2 (2014):5-19,
https://hdl.handle.net/21.15107/rcub_rims_763 .

TY  - CONF
AU  - Folić, Boris
AU  - Ćosić, Mladen
AU  - Lađinović, Đorđe
AU  - Sedmak, Simon
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/726
AB  - У овом раду приказани су неки случејеви утицаја промена параметара тла на варијације опруга као модела тла, затим крутости шипова и опруга којима се замењује систем шип-тло. Код истраживања статичке или динамичке интеракције конструкција-тло уобичајено је увођење опруга, било као замена утицаја тла у рамовском моделу или као спој конструкције и тла у просторном моделу. Промена параметара тла која у суштини представља виско-еласто-пластичну средину може бити у временским и просторсторним координатама.
PB  - Savez građevinskih inženjera Srbije
C3  - IV naučno-stručno savetovanje, Zemljotresno inženjerstvo i inženjerska seizmologija
T1  - Uticaj promene parametara tla u osnovi objekta na krutost šipova i opruga
EP  - 132
SP  - 123
UR  - https://hdl.handle.net/21.15107/rcub_rims_726
ER  - 

@conference{
author = "Folić, Boris and Ćosić, Mladen and Lađinović, Đorđe and Sedmak, Simon",
year = "2014",
abstract = "У овом раду приказани су неки случејеви утицаја промена параметара тла на варијације опруга као модела тла, затим крутости шипова и опруга којима се замењује систем шип-тло. Код истраживања статичке или динамичке интеракције конструкција-тло уобичајено је увођење опруга, било као замена утицаја тла у рамовском моделу или као спој конструкције и тла у просторном моделу. Промена параметара тла која у суштини представља виско-еласто-пластичну средину може бити у временским и просторсторним координатама.",
publisher = "Savez građevinskih inženjera Srbije",
journal = "IV naučno-stručno savetovanje, Zemljotresno inženjerstvo i inženjerska seizmologija",
title = "Uticaj promene parametara tla u osnovi objekta na krutost šipova i opruga",
pages = "132-123",
url = "https://hdl.handle.net/21.15107/rcub_rims_726"
}

Folić, B., Ćosić, M., Lađinović, Đ.,& Sedmak, S.. (2014). Uticaj promene parametara tla u osnovi objekta na krutost šipova i opruga. in IV naučno-stručno savetovanje, Zemljotresno inženjerstvo i inženjerska seizmologija
Savez građevinskih inženjera Srbije., 123-132.
https://hdl.handle.net/21.15107/rcub_rims_726

Folić B, Ćosić M, Lađinović Đ, Sedmak S. Uticaj promene parametara tla u osnovi objekta na krutost šipova i opruga. in IV naučno-stručno savetovanje, Zemljotresno inženjerstvo i inženjerska seizmologija. 2014;:123-132.
https://hdl.handle.net/21.15107/rcub_rims_726 .

Folić, Boris, Ćosić, Mladen, Lađinović, Đorđe, Sedmak, Simon, "Uticaj promene parametara tla u osnovi objekta na krutost šipova i opruga" in IV naučno-stručno savetovanje, Zemljotresno inženjerstvo i inženjerska seizmologija (2014):123-132,
https://hdl.handle.net/21.15107/rcub_rims_726 .

TY  - CONF
AU  - Folić, Boris
AU  - Ćosić, Mladen
AU  - Lađinović, Đorđe
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/724
AB  - У раду je приказан прорачун моста коришћењем нелинеарне динамичке анализе (НДА) преко временске историје (ВИ) уз уважавање динамичке интеракције конструкција темељ тло. У систему тло-шип-конструкција, конструкција је моделована као оквирни систем са више степени слободе (МДОФ), тло је моделовано преко пе-ипсилон криви за песак као линк елементи, а према Рисовом моделу. Анализиран је редослед формирања пластичних зглобова у стубу, шипу и слом тла.
PB  - Savez građevinskih inženjera Srbije, Beograd, Srbija
C3  - Zbornik radova - Peto naučno-stručno međunarodno savetovanje Geotehnički aspekti građevinarstva, Sokobanja
T1  - NDA TH mosta fundiranog na šipovima preko p-y krivih za pesak prema Reese-u
EP  - 242
SP  - 233
UR  - https://hdl.handle.net/21.15107/rcub_rims_724
ER  - 

@conference{
author = "Folić, Boris and Ćosić, Mladen and Lađinović, Đorđe",
year = "2013",
abstract = "У раду je приказан прорачун моста коришћењем нелинеарне динамичке анализе (НДА) преко временске историје (ВИ) уз уважавање динамичке интеракције конструкција темељ тло. У систему тло-шип-конструкција, конструкција је моделована као оквирни систем са више степени слободе (МДОФ), тло је моделовано преко пе-ипсилон криви за песак као линк елементи, а према Рисовом моделу. Анализиран је редослед формирања пластичних зглобова у стубу, шипу и слом тла.",
publisher = "Savez građevinskih inženjera Srbije, Beograd, Srbija",
journal = "Zbornik radova - Peto naučno-stručno međunarodno savetovanje Geotehnički aspekti građevinarstva, Sokobanja",
title = "NDA TH mosta fundiranog na šipovima preko p-y krivih za pesak prema Reese-u",
pages = "242-233",
url = "https://hdl.handle.net/21.15107/rcub_rims_724"
}

Folić, B., Ćosić, M.,& Lađinović, Đ.. (2013). NDA TH mosta fundiranog na šipovima preko p-y krivih za pesak prema Reese-u. in Zbornik radova - Peto naučno-stručno međunarodno savetovanje Geotehnički aspekti građevinarstva, Sokobanja
Savez građevinskih inženjera Srbije, Beograd, Srbija., 233-242.
https://hdl.handle.net/21.15107/rcub_rims_724

Folić B, Ćosić M, Lađinović Đ. NDA TH mosta fundiranog na šipovima preko p-y krivih za pesak prema Reese-u. in Zbornik radova - Peto naučno-stručno međunarodno savetovanje Geotehnički aspekti građevinarstva, Sokobanja. 2013;:233-242.
https://hdl.handle.net/21.15107/rcub_rims_724 .

Folić, Boris, Ćosić, Mladen, Lađinović, Đorđe, "NDA TH mosta fundiranog na šipovima preko p-y krivih za pesak prema Reese-u" in Zbornik radova - Peto naučno-stručno međunarodno savetovanje Geotehnički aspekti građevinarstva, Sokobanja (2013):233-242,
https://hdl.handle.net/21.15107/rcub_rims_724 .

TY  - JOUR
AU  - Ćosić, Mladen
AU  - Folić, Boris
AU  - Sedmak, Simon
PY  - 2012
UR  - http://rims.institutims.rs/handle/123456789/620
AB  - The paper describes the modelling and stability analysis of slender piles using finite element method. The concept of a modified stability analysis of 3D model pile–soil–pile cap is formulated; it is formed from solid finite element models for the two types of soil, and a single-pile. Connection in pile–soil contact is modelled using link elements. The terms of the level of normalised critical load Pcr/PE 3D model of pile–soil–pile cap are derived using regression analysis of the power function.
On the basis of performed numerical tests and regres-sion analyses expressions are derived for the buckling length coefficient  as a function of pile length, pile stiff-ness and soil stiffness. Research has shown that the use of sophisticated mathematical models and numerical analysis is justified and necessary in order to gain better insight into the behaviour of slender piles in terms of stability. The paper points to the complex shape of the buckling of slender piles with a number of half waves.
PB  - Društvo za integritet i vek konstrukcija Srbije
PB  - Institut IMS
T2  - Integritet i vek konstrukcija
T1  - Analiza stabilnosti vitkog 3D modela šipa u interakciji sa tlom metodom konačnih elemenata
EP  - 232
IS  - 3
SP  - 221
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_rims_620
ER  - 

@article{
author = "Ćosić, Mladen and Folić, Boris and Sedmak, Simon",
year = "2012",
abstract = "The paper describes the modelling and stability analysis of slender piles using finite element method. The concept of a modified stability analysis of 3D model pile–soil–pile cap is formulated; it is formed from solid finite element models for the two types of soil, and a single-pile. Connection in pile–soil contact is modelled using link elements. The terms of the level of normalised critical load Pcr/PE 3D model of pile–soil–pile cap are derived using regression analysis of the power function.
On the basis of performed numerical tests and regres-sion analyses expressions are derived for the buckling length coefficient  as a function of pile length, pile stiff-ness and soil stiffness. Research has shown that the use of sophisticated mathematical models and numerical analysis is justified and necessary in order to gain better insight into the behaviour of slender piles in terms of stability. The paper points to the complex shape of the buckling of slender piles with a number of half waves.",
publisher = "Društvo za integritet i vek konstrukcija Srbije, Institut IMS",
journal = "Integritet i vek konstrukcija",
title = "Analiza stabilnosti vitkog 3D modela šipa u interakciji sa tlom metodom konačnih elemenata",
pages = "232-221",
number = "3",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_rims_620"
}

Ćosić, M., Folić, B.,& Sedmak, S.. (2012). Analiza stabilnosti vitkog 3D modela šipa u interakciji sa tlom metodom konačnih elemenata. in Integritet i vek konstrukcija
Društvo za integritet i vek konstrukcija Srbije., 12(3), 221-232.
https://hdl.handle.net/21.15107/rcub_rims_620

Ćosić M, Folić B, Sedmak S. Analiza stabilnosti vitkog 3D modela šipa u interakciji sa tlom metodom konačnih elemenata. in Integritet i vek konstrukcija. 2012;12(3):221-232.
https://hdl.handle.net/21.15107/rcub_rims_620 .

Ćosić, Mladen, Folić, Boris, Sedmak, Simon, "Analiza stabilnosti vitkog 3D modela šipa u interakciji sa tlom metodom konačnih elemenata" in Integritet i vek konstrukcija, 12, no. 3 (2012):221-232,
https://hdl.handle.net/21.15107/rcub_rims_620 .