双塔高层建筑-多层地下室-桩-土系统动力相互作用研究  

Research on the Dynamic Interaction of a Double-towers Tall Building-Multistory Basement-Piles-Soil System

作　　者：田力[1] 严士超[1] 

机构地区：[1]天津大学建筑工程学院土木工程系,天津300072

出　　处：《工程抗震》2001年第4期8-15,共8页Earthquake Resistant Engineering

摘　　要：采用样条子域法、半解析无限元法和直梁的弯剪单元模型相耦合的方法 ,对带有多层地下室的桩承单、双塔高层建筑与周围土体组成的体系 ,在地震作用下的动力相互作用问题进行了分析研究。算例表明 ,本文方法具有输入数据简单、计算量较小、精度较高的优点 。In this paper, respons of the dynamic interaction of a system, which includes pile supporting tall building (single or double towers) with multistory basement and the adjacent medium of soil, is analyzed and investigated under earthquake action through the coupling of the spling subdomain method, semi?analytical infinite element method and flexure?shearing model of beam element. The calculating results show that the method presented in this paper has not only the advantages of simple input data, less computional efforts and high precision, but also better reflcts the dynamic behavior and the internal mechanism of this type of building by considering the interaction between and the building and its adjacent ground in engineering practice.

关 键 词：高层建筑多层地下室桩土相互作用 样条子域法 半解析无限元 多层地下室 

分 类 号：TU473.1[建筑科学—结构工程]