桩基-结构体系的地震响应分析  

SEISMIC RESPONSE ANALYSIS OF PILE FOUNDATION STRUCTURE SYSTEM

作　　者：楼梦麟[1] 吴京宁[1] 

机构地区：[1]同济大学

出　　处：《土木工程学报》1999年第5期56-61,共6页China Civil Engineering Journal

基　　金：国家自然科学基金!59778027;国家自然科学基金!59823002;国家教委博士点基金

摘　　要：通过确定桩间动力相互作用因子的近似方法，建立了群桩基础在水平和转动振动相耦合时的动力阻抗矩阵，并讨论了桩－土－结构系统地震响应分析的简化计算方法。算例表明，这一简化方法具有良好的计算精度。An approximate method to compute the dynamic interaction factors between piles is developed in this paper taking the coupling of the translational and rotational motions of piles into consideration. The impedance matrix of the pile foundation is thus established using the dynamic interaction factors in frequency domain. And then, a simplified method for analyzing seismic response of pile foundation - structure system is suggested in time domain. Numerical examples show that the suggested method can achieve reasonable precision.

关 键 词：群桩 桩-土-结构 相互作用 高层建筑 地震响应 

分 类 号：TU435[建筑科学—岩土工程] TU473.1[建筑科学—土工工程]