Analytical model for in plane building-foundation-soil interaction: incident p-, sv- and rayleigh waves, 1990

Foundation-soil and building-foundation-soil interaction has been studied using a two-dimensional analytical model, including both the dynamic and the kinematic interaction effects. The building has been represented by an infinitely long shear wall resting on a rigid circular foundation, embedded into an elastic homogeneous half-space. Deep and shallow foundations have been considered (with depth-to-half-width ratio of 1 and 0.5) and excitation consisting of plane P- and SV- and surface Rayleigh waves. The wave function expansion method has been used to represent the motion in the half-space and a substructure approach to solve the interaction problem. Special attention has been paid to the wave passage effects, and to the influence of the depth of the embedment.

本研究采用二维解析模型，针对地基-土体相互作用与建筑-地基-土体相互作用开展研究，涵盖动力相互作用与运动相互作用两类效应。研究中将建筑简化为一座搁置在埋置于弹性均匀半空间（half-space）内的刚性圆形地基上的无限长剪力墙。本次研究考虑了深基础与浅基础两种工况，其深宽比分别为1和0.5，地震激励包含平面P波、SV波以及表面瑞利波（Rayleigh waves）。研究采用波函数展开法（wave function expansion method）表征半空间内的运动，并通过子结构法（substructure approach）求解该相互作用问题。研究重点关注了波传播效应以及地基埋置深度的影响。