上海中心大厦桩-土-结构Miranda模型的地震反应分析

摘要

In this paper,time-history analysis of the Shanghai Tower Miranda model under the assumption of the rigid foundation and the Shanghai Tower Miranda model consider the pile-soil-structure interaction is carried out,these two engineerings are compared,and some useful conclusions are concluded.The coupling term of the acceleration at the basis of the model considering the pile-soilstructure interaction is also extracted and superimposed with the former seismic wave,and the modified seismic wave is obtained.Input this wave to the upper structure,in order to consider the impact of interaction,it can provide a support in reduceing the scale of calculation.%采用ANSYS软件分别就刚性地基假定下上海中心大厦Miranda模型、考虑桩-土-结构相互作用的上海中心大厦Miranda模型进行了动力时程分析,并对两者进行了比较,得出一些有益的结论.本文还提取了相互作用模型基底处的加速度耦合项,与原地震波叠加,形成修正地震波,将修正地震波输入到以刚性地基为假定的上部结构中以考虑相互作用带来的影响,为减小结构抗震计算规模提供了支撑.