THE NONLINEAR TIME-HISTORY ANALYSIS OF HIGH-RISE STEEL FRAME STRUCTURE WITH VISCOELASTIC DAMPERS CONSIDERING P-△ EFFECT

摘要：

The nonlinear time-history analysis of high-rise steel frame structure with viscoelastic(VE)dampers considering P-△ effect is presented in this paper. The stiffness matrix and the damping matrix of high-rise steel frame structure with VE dampers considering P-△ effect are deduced based on the equivalent stiffness and equivalent damping model of VE damper. A nonlinear dynamic analytical program is compiled with two numerical integration methods and an efficient numerical method of dealing with inflection points. Furthermore, a numerical example is analyzed by the program. The results show that the program is effective to apply to the linear and nonlinear time-history analysis of high-rise steel frame structure with VE dampers. The results also display that the dynamic responses of high-rise steel frame structure with VE dampers in different seismic mitigations are reduced remarkably and the structural seismic security can be improved greatly by the installation of VE dampers.

关键词： High-rise steel frame structure Viscoelastic damper Nonlinear time-history analysis P-△ effect

作者: Ye-Hua Wang Yun Zhou Da-Yang Wang Xue-Song Deng

作者单位: College of Civil Engineering, Tongji University, Shanghai 200092, P.R. China College of Civil Engine College of Civil Engineering, Guangzhou University, Guangzhou 510006, P.R. China

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 1289-1295

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）