高层建筑结构-地基动力互相作用地震反应分析  

Earthquake Response Analysis of the Structure-Foundation Dynamic Interaction of High-Rise Buildings

作　　者：陈晋中[1] 王军[2] 徐美娟[1] 

机构地区：[1]南京交通职业技术学院,南京211188 [2]上海岩土工程勘察设计研究院,上海200002

出　　处：《太原理工大学学报》2011年第4期408-411,共4页Journal of Taiyuan University of Technology

基　　金：江苏省六大人才高峰项目(06-F-014)

摘　　要：针对结构与地基体系动力相互作用的影响,改进了高层建筑采用桩筏基础时结构-地基体系动力分析模型;提出了在水平地震作用下定量计算结构振动特性及内力的方法;通过算例分析了考虑结构-地基体系共同作用时,桩基体系动刚度及桩头部位参振土质量的取值变化对结构振动特性及内力的影响,以期定量计算结构振动特性及其内力变化,真实反映结构-地基体系动力相互作用的影响。The influence of the dynamic interaction of the structure-foundation system was considered. The structure-foundation dynamic analysis mode of the high-rise building with pile--raft foundation was improved. The method was presented to calculate the dynamical characteristic and internal force of the structure with the horizontal earthquake action quantitatively. By taking into account the interaction of the structure foundation system,a numerical example was： used to analyze the dynamical characteristic and internal force of the structure with the influence of the parameters, such as the dynamic stiffness of the pile foundation system and the quality change of the soil that participates in the vibration around the pile head. Results show that the method can be used to calculate the dynamical characteristic and internal force of the structure quantitatively, and to reflect the actual influence, thus having great importance in practice.

关 键 词：高层建筑 桩筏基础 结构-地基体系 动力分析模型 地震反应 内力计算 

分 类 号：TU431[建筑科学—岩土工程]