A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soil–pile interaction considering structural yielding: Numerical modeling and experimental validation
Highlights Advanced fiber beam model for the inelastic analysis of pile-foundations. Beam model validation against a unique series of Laboratory Pushover tests. Experimental simulation with advanced nonlinear 3D FE model. Computational efficiency of beam formulation verified through comparison with 3D FE model.
Abstract In the present study the accuracy of an efficient beam formulation for inelastic analysis of pile-foundation systems is validated against a series of Laboratory Pushover tests on vertical single piles embedded in dry sand under different load paths to failure in M–Q space conducted in the Laboratory of Soil Mechanics/Dynamics (LSMD) in NTUA. The obtained results are also compared to those from a fully 3D Nonlinear Finite Element (FE) simulation. The proposed beam formulation is based on the Boundary Element Method (BEM) accounting for shear deformation effect. A displacement based procedure is employed and inelastic redistribution is modeled through a distributed plasticity (fiber) model exploiting pile material constitutive laws and numerical integration over the cross-sections, while the surrounding soil is modeled through independent inelastic Winkler springs. The efficiency of the beam formulation is verified through the good agreement between the measured and the calculated results.
Soil–pile interaction considering structural yielding: Numerical modeling and experimental validation
Highlights Advanced fiber beam model for the inelastic analysis of pile-foundations. Beam model validation against a unique series of Laboratory Pushover tests. Experimental simulation with advanced nonlinear 3D FE model. Computational efficiency of beam formulation verified through comparison with 3D FE model.
Abstract In the present study the accuracy of an efficient beam formulation for inelastic analysis of pile-foundation systems is validated against a series of Laboratory Pushover tests on vertical single piles embedded in dry sand under different load paths to failure in M–Q space conducted in the Laboratory of Soil Mechanics/Dynamics (LSMD) in NTUA. The obtained results are also compared to those from a fully 3D Nonlinear Finite Element (FE) simulation. The proposed beam formulation is based on the Boundary Element Method (BEM) accounting for shear deformation effect. A displacement based procedure is employed and inelastic redistribution is modeled through a distributed plasticity (fiber) model exploiting pile material constitutive laws and numerical integration over the cross-sections, while the surrounding soil is modeled through independent inelastic Winkler springs. The efficiency of the beam formulation is verified through the good agreement between the measured and the calculated results.
Soil–pile interaction considering structural yielding: Numerical modeling and experimental validation
Kampitsis, Andreas E. (author) / Giannakos, Spyros (author) / Gerolymos, Nikos (author) / Sapountzakis, Evangelos J. (author)
Engineering Structures ; 99 ; 319-333
2015-05-05
15 pages
Article (Journal)
Electronic Resource
English
Influence of Soil-Structure Interaction on Yielding of Pile Embedded in Stratified Soil
| Springer Verlag | 2022
Numerical Simulation of Pile-Soil Interaction Considering Sand Liquefaction under Earthquake
| Trans Tech Publications | 2012