3种小高层钢结构体系抗震性能与经济性分析

Seismic performance and economic analysis of three small high-rise steel structure systems

文章研究了钢框架、钢框架-支撑、框架-剪力墙3种不同钢结构布置方案在小高层建筑抗震应用中的异同;选择一栋典型的11层钢结构住宅工程,设计了3种不同的钢结构布置方案,利用结构设计与分析软件PKPM建立结构分析模型并进行了模态分析、反应谱分析以及弹性时程分析。通过对比不同结构布置方案的抗震性能和经济性,得出钢框架-支撑结构可以作为优选的结构体系应用于小高层钢结构住宅的设计中。

Steel frame,steel braced frame and frame shear wall structure are three commonly used steel structure systems at present.In order to explore the similarities and differences among the three kinds of structure models in the seismic application of small high-rise buildings,a typical11-storey steel structure is selected,and three kinds of structure models are designed.The PKPM software is used to establish the structural analysis model.In order to evaluate the structural seismic behavior,the modal analysis,seismic acceleration response spectrum analysis and elastic time-history analysis are carried out for the structure.By comparing the seismic performance and economy of three kinds of structure models,it is concluded that the steel braced frame can be used as the preferred structure system in the design of small high-rise steel structure residence.