广州珠江新城西塔模型振动台试验研究.pdf

广州珠江新城西塔模型振动台试验研究吕西林施卫星刘成清张松周颖() 摘要: 以广州珠江新城西塔为研究对象,进行了l/80的模型模拟地震振动台试验,研究了模型结构的动力特性和不同烈度地震作用下模型的加速度、位移、应变等响应;并根据模型试验结果和相似理论反推到原形结构,研究了原型结构的鞭梢效应,找出了整体结构的薄弱部位,分析评价了这种新型超限高层复杂结构的抗震性能和设计的合理性;最后对原形结构提出了改进结构抗震性能的措施和建议. 关键词:高层建筑;模型试验;振动台试验;动力特性;地震反应 Exper menta Study on Guangzhou West Tower L“Xi 1in, SHI Weixing, LIU Chengqing, ZHANG Song,ZHOU Ying (Research Structure已ng. 卸d Disaster Reduction, Tongji Univ,Sh卸gtlai Z00092,china) Abstract:A shaking table test of1/80 scale model ofGuangzhou West Tower was carried out in the Shaking Table DivisiOn of State Key Laboratory for Di saster Reduction inCivil Engineering at Tongji UniVersity. The model’s dynamic characteri stics and responses of acceleratiOn,deformation, strain under different level earthquake were investigated,then the seismic response 0f the prOtotype structure were deduced and analyzed. The whiplash effect of the prototype structure was studied,and the weak area of the structure was found on the basi sof the experiment proves that it isentirely feasible to design and apply this structurat type to practical engineering for the sake of its good seismic ,some suggestions for the prototype structural design are put forward. Key word:high—rise building;model test; shaking table test; dynamic characteri stics; seismic respOnse 1 概述随着人们对建筑功能要求越来越高,建筑形式和结构类型在不断创新。超越规范限值