二维水平地震作用下斜交构件多层结构的地震反应

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Seismic Response Analysis for Multi-storeyed Buildings Composed of Nonorthogonal Members under Bi-Directional Horizontal Earthquake Ground Motions

摘要: 本文针对由斜交构件组成的多层结构,考虑任意角度输入二维水平地运动,采用多种不同的恢复力特性曲线模型,提供了弹性与弹塑性地震反应的计算方法,并据此编制了相应的计算机程序.文内通过一座十层建筑结构的算例,分析了一维与二维地震波输入以及不同的地震波输入角度对各构件地震反应的影响,并讨论了弹性与弹塑性地震反应的差异,提出了一些有参考价值的结论.

Abstract: This paper presents a method for analyzing both linear and nonlinear seismic responses of multi-storeyed buildings composed of nonorthogonal structural members under the action of bi-directional horizontal earthquake waves. Different kinds of restoring force model are used. An efficient computer programme for the computation of nonlinear seismic response of the structure was worked out. In order to illustrate the application of this method, an example of a ten-storeyed building of such sort is given.

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