大跨度悬挑钢桁架结构的弹塑性时程分析
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(1 天津大学建筑设计研究院，天津 300073; 2 天津大学土木工程系，天津300072)[摘 要]钢筋混凝土筒体高位悬挑钢桁架平台是钢-混凝土混合结构中的新型结构，本文采用SAP2000对塔楼进行了罕遇地震作用下的弹塑性时程分析，通过分析结构的弹塑性地震响应得出钢桁架的出铰次序和破坏机理。[关键词]高位悬挑结构;弹塑性时程分析;抗震性能中图分类号：TU391 文献标识码：A 文章编号：1002-848X(2013)S1-0403-03Elastic-plastic time-history analysis of the cantilevered steel truss structure in a long spanYu Jinghai1,Li Luchuan2,Jia Li1,Yan Xiangyu1(1 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 2 School of Civil Engineering, Tianjin University,Tianjin 300072,China)Abstract: The reinforced concrete core walls with cantilevered steel truss platform located at a higher level is a new structure of steel-concrete mixed structure. The elastic-plastic time-history analysis of the turret in the strong earthquakes has been accomplished in this paper using the SAP2000. Basing on the analysis of elastic-plastic earthquake response of the structure, the hinge order and damage mechanism of the steel truss has been gotten.Keywords: cantilevered structure located at a higher level; elastic-plastic time-history analysis; seismic behavior作者简介：于敬海，博士，研究员，一级注册结构工程师，Email：yjh300072@126.com。
