基于结构台阵记录的地震响应分析

为了研究土-结构相互作用对高层建筑地震响应数值模拟的影响．选择一栋具有地震观测记录的高层建筑（结构台阵）作为研究对象．利用Abaqus有限元软件和2009年姚安地震加速度记录，并假定了水平成层和有倾角成层的2种土介质模型．进行土-结构动力反应分析。结果表明：有倾角成层土-桩-结构相互作用模型的计算结果与观测资料相比有明显的放大现象，在NS方向体现的更加明显。这说明，就高层建筑的抗震分析而言，土介质模型对计算结果影响很大，在进行地震作用下土-结构地震响应分析时．土层模型应尽可能与真实土层相符。否则其计算结果会产生较大误差。

Seismic Response Analysis of A High-rise Building Structure Based on Seismic Observation Data

In order to study the influence of the soil-structure interaction on numerical simulation of seismic response analysis of a high-rise building structure, the paper selects a high-rise building （structure monitoring network） with obtained seismic observation data as research object. The finite element software Abaqus and the obtained seismic observation data of Yaoan earthquake in 2009 are used to employ for the elastic time-history analysis of the both soil condition model of the structure （horizontal layering and inclined layering） . Furthermore, the calculated structural responses and the acceleration response spectrums are compared with the recorded data. The comparison between the time-history analysis results and the recorded dataafter Yaoan Earthquake shows that the calculation results of the inclined layering model is bigger than the recorded data in the both direction. Since inclined layering model has a obvious significance on the dynamic performance of the structure, we should select a model like real soil as far as possible if not it will bring big errors when a high-rise building is studied under ground motions.