桩承高层建筑与土体间动力相互作用研究  

Study on Dynamic Interaction between Pile-Supported Tall Building and Adjacent Soil

作　　者：田力[1] 李忠献[1] 严士超[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《振动工程学报》2002年第2期215-219,共5页Journal of Vibration 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 ,对于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反应进行了分析研究。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 ,并且较好反应了工程上此类建筑物考虑与地基共同工作时的动力性能和内在机理。In this paper, response of the interaction system which includes pile supported tall buildings (single or double towers) with multistoried basement and the adjacent medium of soil subject to the impact of earthquake is analyzed using the coupling model of the spline subdomain method, semi analytical infinite element method and the bend shear model of beam element. The results show that the presented method not only has the advantages of less input data, less computation efforts and higher satisfactory precision, but also better reflects the dynamic properties and the internal mechanism of this type of building in engineering, considering the interaction between the buildings and its adjacent ground.

关 键 词：土体 高层建筑 桩 相互作用 样条子域法 结构动力学 地震作用 

分 类 号：TU311.3[建筑科学—结构工程]