Conventional *** pseudo-dynamic seismic analyses in the shallow strip footing bearing capacity problem

作     者：Ghazal Rezaie Soufi Reza Jamshidi Chenari Sina Javankhoshdel Ghazal Rezaie Soufi;Reza Jamshidi Chenari;Sina Javankhoshdel

作者机构：Department of Civil EngineeringFaculty of EngineeringUniversity of GuilanP.O.3756RashtGuilanIran Rocscience Inc.54 Saint Patrick St.Toronto M5T 1V1OntarioCanada 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2021年第20卷第4期

页      面：993-1006页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

主　　题：bearing capacity modified pseudo-dynamic method conventional pseudo-dynamic method spectral analysis 

摘      要：The conventional pseudo-dynamic(CPD)and modified pseudo-dynamic(MPD)methods are invoked to obtain the seismic bearing capacity of strip foundations using the limit equilibrium method,with a two-wedge failure mechanism.A spectral version of the conventional pseudo-dynamic method(SPD)is also invoked by considering the ground motion amplification factor,to be a function of the non-dimensional frequencyλ/B and soil *** analyses show that bearing capacity results obtained by the MPD and SPD methods are generally *** experience the same general reduction in bearing capacity with the increase ofλ/B,with successive ups and downs corresponding to soil′s natural *** 5λ/B10,SPD and MPD results fluctuated between falling above and below CPD ***λ/B2.5,SPD and MPD results were consistent with attenuation of the shear wave,while for 10λ/B,amplification was *** obtained by the CPD method monotonically decrease,due to the fact that CPD fails to inherently consider site effects and damping,and instead and relies on a single factor to consider the ground motion amplification.