地基-基础-结构共同作用抗震分析综述

常规设计普遍采用反应谱法来进行抗震设计,这其实是考虑地基-基础-结构共同作用的一种方法,但共同作用抗震分析更准确的方法是需要采用时程分析的方法。这需要将地基、基础与结构共同建于同一模型中进行分析,为了在实际设计中能更广泛的应用,需要解决土模型、土边界模型和桩土界面模型的问题。对此进行了分析,提供了一些比较适合工程实际建模计算的模型形式,并提出了一些考虑共同作用后对设计的建议。

THE STATE AND THE ARTS OF ASEISMIC ANALYSIS OF SOIL-FOUNDATION-STRUCTURE INTERACTION

In practice,the method of response spectrum is used to do aseismic design,and it's a way to design with the thought of soil-foundation-structure interaction,but the method of time history analysis is much more precise than the method of response spectrum.The method of time history analysis asks a model together with soil,foundation and structure.For wide use in an actual design,it needs to solve the problems of the model of soil,that of soil boundary and the one of the interface between soils and piles.The author makes a discussion on the problem,gives some models that are suitable for actual projects,and gives some advices to design of soiil-foundation-struction interaction.