Three-Dimensional Pushover Analysis for Asymmetric-Plan Buildings under Bi-directional Earthquake Motions

摘要：

The classic pushover analysis procedure depends on the 2-D structural analysis which is inapplicable for asymmetric structures. So, a three-dimensional pushover analysis procedure is proposed to estimate seismic responses of asymmetric-plan structures subjected to bi-directional ground motions. In the procedure, the displacement response of an asymmetric-plan structure is assumed to equate to the combined response of modal equivalent systems, and equivalent SDOF system subjected to earthquake motion combination for x and y components( γxnxg(t) + γynyg(t) ) is established. The procedure for evaluating earthquake demands of structures subjected to bi-directional ground motions is proposed in detail. The numerical results show that the threedimensional pushover analysis procedure can be used as a simple and effective method for estimating seismic demands of structures subjected to bi-directional ground motions.

关键词： pushover analysis bi-directional ground motions asymmetric-plan building equivalent SDOF system

作者: WANG Feng LI Xinle

作者单位: State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China College of Architecture & Civil Engineering, Dalian Nationalities University, Dalian 116600, Liaoning, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 2580-2585

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）