Modeling and simulation of earthquake soil structure interaction excited by inclined seismic waves
Modeling and simulation of earthquake soil structure interaction excited by inclined seismic waves
复制标题
DOI：
10.1016/j.soildyn.2021.106720
复制
发表时间：
2021-07
影响因子：
4
通讯作者：
Hexiang Wang;Han Yang;Yuan Feng;B. Jeremić
中科院分区：
文献类型：
--
作者：
Hexiang Wang;Han Yang;Yuan Feng;B. Jeremić
将波势法（WPF）与区域减缩法（DRM）相结合，研究了倾斜入射地震波作用下水平层状地基中地震-土-结构相互作用（ESSI）特性。波势公式用于从通过层状地面传播的入射的一次（P）和二次（S）波发展空间变化的倾斜地震波场。然后，开发的地震波场被用来开发的有效力的区域缩减方法，然后用于分析的土结构系统的ESSI响应。通过分析一个深埋结构--小型模块化反应堆（SMR）在垂直面（SV）极化入射S波作用下的ESSI响应，验证了WPF-DRM方法的有效性。通过算例分析了入射波倾角和入射波频率对结构ESSI响应的影响。
Presented is an application of wave potential formulation (WPF) together with domain reduction method (DRM) to modeling earthquake soil structure interaction (ESSI) behavior in horizontally layered ground under inclined incident seismic waves. Wave potential formulation is used to develop a spatially varying, inclined seismic wave field from incident Primary (P) and Secondary (S) waves that propagate through layered ground. Developed seismic wave field is then used to develop effective forces for Domain Reduction Method that are then used for analyzing ESSI response of a soil structure system. Developed methodology, called WPF-DRM, is verified using analytic solution for a free field response of layered ground subjected to inclined incident waves.Developed WPF-DRM methodology is illustrated through analysis of an ESSI response of a deeply embedded structure, a small modular reactor (SMR) subjected to incident S wave polarized in vertical plane (SV) with variation in inclinations and frequencies. Presented example highlights the influences of incident wave inclination and frequency on ESSI response of analyzed SMR.