Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004
Abstract
A probabilistic concept for determining pile bearing capacity is presented, taking into account the variability of CPT test parameters and methodology of calculation according to the requirements of Eurocode 7 (EN 1997-1: 2004). Based on a single initial (real) CPT test, a larger number of generated (simulation) CPT tests are introduced drawn from solutions of statistics and probability theory. Research has found that the best solutions are achieved using the DA 2 design approach for n(CPT) > 10 tests. Taking into account the deterministic and probabilistic approach in the analysis of pile bearing capacity, it is found that for the DA 2 design approach, the ratio of pile bearing capacity obtained from simulation and the capacity as determined through three methods (Mazurkiewicz, Van der Veen and hyperbolic approximation) is Rcd, /Pu = 1.148. Using the reliability index, the following values of partial resistance factors are obtained: λ, s /P 1.1, λ, b /P 1.1, which also points to th...e DA 2 design approach.
Keywords:
Pile / Bearing capacity / CPT test / probability theory / Eurocode 7 (EN 1997-1: 2004)Source:
GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro, 2016, 16, 1, 1335-1342Collections
Institution/Community
Institut za ispitivanje materijalaTY - CONF AU - Ćosić, Mladen AU - Šušić, Nenad AU - Folić, Radomir PY - 2016 UR - http://rims.institutims.rs/handle/123456789/300 AB - A probabilistic concept for determining pile bearing capacity is presented, taking into account the variability of CPT test parameters and methodology of calculation according to the requirements of Eurocode 7 (EN 1997-1: 2004). Based on a single initial (real) CPT test, a larger number of generated (simulation) CPT tests are introduced drawn from solutions of statistics and probability theory. Research has found that the best solutions are achieved using the DA 2 design approach for n(CPT) > 10 tests. Taking into account the deterministic and probabilistic approach in the analysis of pile bearing capacity, it is found that for the DA 2 design approach, the ratio of pile bearing capacity obtained from simulation and the capacity as determined through three methods (Mazurkiewicz, Van der Veen and hyperbolic approximation) is Rcd, /Pu = 1.148. Using the reliability index, the following values of partial resistance factors are obtained: λ, s /P 1.1, λ, b /P 1.1, which also points to the DA 2 design approach. C3 - GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro T1 - Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004 EP - 1342 IS - 1 SP - 1335 VL - 16 UR - https://hdl.handle.net/21.15107/rcub_rims_300 ER -
@conference{ author = "Ćosić, Mladen and Šušić, Nenad and Folić, Radomir", year = "2016", abstract = "A probabilistic concept for determining pile bearing capacity is presented, taking into account the variability of CPT test parameters and methodology of calculation according to the requirements of Eurocode 7 (EN 1997-1: 2004). Based on a single initial (real) CPT test, a larger number of generated (simulation) CPT tests are introduced drawn from solutions of statistics and probability theory. Research has found that the best solutions are achieved using the DA 2 design approach for n(CPT) > 10 tests. Taking into account the deterministic and probabilistic approach in the analysis of pile bearing capacity, it is found that for the DA 2 design approach, the ratio of pile bearing capacity obtained from simulation and the capacity as determined through three methods (Mazurkiewicz, Van der Veen and hyperbolic approximation) is Rcd, /Pu = 1.148. Using the reliability index, the following values of partial resistance factors are obtained: λ, s /P 1.1, λ, b /P 1.1, which also points to the DA 2 design approach.", journal = "GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro", title = "Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004", pages = "1342-1335", number = "1", volume = "16", url = "https://hdl.handle.net/21.15107/rcub_rims_300" }
Ćosić, M., Šušić, N.,& Folić, R.. (2016). Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004. in GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro, 16(1), 1335-1342. https://hdl.handle.net/21.15107/rcub_rims_300
Ćosić M, Šušić N, Folić R. Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004. in GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro. 2016;16(1):1335-1342. https://hdl.handle.net/21.15107/rcub_rims_300 .
Ćosić, Mladen, Šušić, Nenad, Folić, Radomir, "Probabilistic Analysis of Bearing Capacity of Piles with Variable Parameters of CPT Test and Calculation According to the EN 1997-1: 2004" in GNP 2016, Civil Engineering – Science and Practice, International Conference, Žabljak, Montenegro, 16, no. 1 (2016):1335-1342, https://hdl.handle.net/21.15107/rcub_rims_300 .