桥梁的多点激振效应和非线性作用

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英文篇名：Nonlinear Response Analysis of Bridges under Multi-support Excitation 中文刊名：地震研究 英文刊名：Journal of Seismological Research 作者：刘保纲 ; 郭咏辉 英文作者：Liu Baogang 1) Guo Yonghui 2) 1)Zhengzhou Reilway Bereau ; Zhengzhou 450052 ; China 2)Zhengzhou Municipal Works Design Institute ; Zhengzhou 450052 ; China 中文关键词：多点激振 ; 非线性 ; 影响矩阵 英文关键词：Multi-support excitation ; non-linearity ; effect matrix 出版日期：2002-02-25 机构：郑州铁路局,郑州市政设计院 河南郑州450052 ,河南郑州450052 年：2002 期：01 出版单位：地震研究

摘要

推导了考虑大应变大位移的几何非线性有限元列式。通过影响矩阵讨论桥梁在多点激振下的非线性地震响应 ,并用算例比较一致输入和多点激振下的线性和非线性响应 ,讨论地震动输入方式和结构参数对地震响应的影响。由分析结果可知非线性和多点激振对结构响应影响较大 ,多点激振的影响随结构形式和尺寸的不同而不同
The geometric nonlinear finite element formulation is derived,including large strain and large displacement.By using the effect matrix,the nonlinear earthquake response of bridges under multi-support excitation is discussed in this paper.Furthermore,the numerical test is given under four cases,linear and nonlinear respondences under consistent or multi-support excitations.The effect of input form of earthquake and parameters of structures on the the respondence are discussed.It can be concluded that the effect of nonlinear and multi-support excitation is significant and the respondence of the bridge under multi-support excitation can be changed greatly with different structural forms and dimensions.

引文

[1]龚尧南,王寿梅.结构分析中的非线性有限元素法[M].北京:航天大学出版社,1986.
    [2]Clough.R .W .andPenzien,J .DynamicsofStructures[M].NewYork:McGrawHill,1975.
    [3]GiorgioMonti,CamilloNuti,andPaoloE .Pinto.Nonlimearesponseofbridgesundermultisupportexcitation[J].JournalofStructuralEngineering,1996,10:1147～1159.
    [4]李国豪编.桥梁结构稳定与振动[M].北京:中国铁道出版社,1991.
    [5]许金华,王向坚.大跨度拱桥在地震行波作用下的响应[J].重庆交通学院学报,1998,17(2):1～5.