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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 1998, Vol. 17 ›› Issue (2): 1-5.

• •    下一篇

大跨度拱桥在地震行波作用下的响应

许金华1，王向坚1   

  1. 1. 重庆交通学院 桥梁工程系， 重庆 400075
  • 收稿日期:1997-10-13 修回日期:1997-11-13 出版日期:1998-06-20 发布日期:2016-07-13
  • 作者简介:许金华(1974-), 男, 硕士生

Travelling-Wave Seismic Response of Long-Span Arch Bridges

Xu Jinhua1, Wang Xiangjian1   

  1. 1. Department of Bridge Engineering, Chong qing Jiao tong Institute, Chongqing 400074, P. R. China
  • Received:1997-10-13 Revised:1997-11-13 Online:1998-06-20 Published:2016-07-13

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摘要： 基于多点激振理论和拟静力位移概念分析大跨度拱桥纵平面的行波效应, 考虑恒载起点的p-Δ 效应及几何非线性的影响.采用逐步积分法, 算例表明, 地震行波作用对大跨度拱桥影响很大,工程设计应予以重视.

关键词: 大跨度拱桥, 行波效应

Abstract: In this paper, the travelling-wave effect on planar seismic responses of the long-span arch bridges is analysed based on the theory of multiple-support seismic excitations and the conception of pseudo-static displacement. The step-by-step integration method is applied considering the geomet rical nonlinearities and the p-Δeffect caused by the dead-load. The numerical result shows that the travelling-wave effect has serious influence on the long-span arch bridge and should be considered in engineering design.

Key words: long-span arch bridge, travelling-wave effect

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