Abstract

Based on a shaking table experiment a 1:25 scaled frame–shearwall structure model with large-span steel transfer trusses and finite-element analysis, the dynamic characteristics, seismic responses in the elastic and elastic–plastic phases, and destructive forms of the structure were studied. It was observed that cracks developed as the earthquake wave acceleration increased, but no severe cracking developed in the structure during the experiment. In the seismic responses caused by the artificial accelerogram, the site accelerogram and the El Centro accelerogram, that caused by the artificial accelerogram was the most intense. The interstory drift between transfer stories is large, which means that the transfer stories might be weak. However, the seismic performance of the steel truss transfer stories was good and the structural system was able to meet the seismic requirements regulated by the Chinese Design Code.

摘要

基于振动台实验，采用大跨度钢传递桁架和有限元分析的 1:25 比例框架-剪力墙结构模型，分析了结构的动力特性、弹性和弹塑性阶段的地震响应以及结构的破坏形式进行了研究。观察到裂缝随着地震波加速度的增加而发展，但在实验过程中结构中没有出现严重的裂缝。在人工加速度图、场地加速度图和El Centro加速度图引起的地震响应中，人工加速度图引起的地震响应最为强烈。转移故事之间的故事漂移很大，这意味着转移故事可能很弱。然而，