Analysis of Seismic Resistance Capacity for a Long-Span Cable-Stayed Bridge in Hainan Province

魏德敏; 徐牧

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Analysis of Seismic Resistance Capacity for a Long-Span Cable-Stayed Bridge in Hainan Province

更新时间：2026-09-14

- Analysis of Seismic Resistance Capacity for a Long-Span Cable-Stayed Bridge in Hainan Province
- 海南某大跨斜拉桥抗震性能分析
- Vol. 31, Issue 4, Pages: 398-403(2010)
- 作者机构：
  
  华南理工大学土木与交通学院亚热带建筑科学国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
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- Published：2010
- 稿件说明：
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魏德敏, 徐牧. Analysis of Seismic Resistance Capacity for a Long-Span Cable-Stayed Bridge in Hainan Province[J]. 2010, 31(4): 398-403.
DOI：

魏德敏, 徐牧. Analysis of Seismic Resistance Capacity for a Long-Span Cable-Stayed Bridge in Hainan Province[J]. 2010, 31(4): 398-403. DOI：

摘要

采用三主梁精细有限元模型对海南某斜拉桥的地震响应进行计算分析.进行了反应谱和几何非线性时程分析法地震响应的对比分析.计算结果表明:该桥的桥塔刚度满足要求

主梁刚度基本满足要求

主梁顺桥向的弹性约束和阻尼装置对减小顺桥向位移有一定的作用

但在罕遇地震作用下存在动力失稳的可能性

因此对主梁位移的限制应更严格

从而提高其整体的抗震性能.

Abstract

A meshed triple-girder finite element model was adopted for the seismic responses analysis of a cable-stayed bridge located in Hainan province.The linear and non-linear seismic analysis was carried out by employing the response spectrum method and non-linear time history analysis method respectively.The calculating results show that the rigidity of cable towers and main girder can meet the seismic resistance requirement.The elastic constrains and dampers in the longitudinal direction of the main girder can make some limitation of the displacement which happens in the same direction.However

there still exists potential dynamic instability of the main girder.So the displacement of the main girder should be further limited in order to improve the seismic resistance capacity of the whole structure.

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references

苏成,韩大建,王乐文.大跨度斜拉桥三维有限元动力模型的建立[J].华南理工大学学报,1999,27(11):51-56.Su Cheng,Han Dajian,Wang Lewen.The establishment of 3-D finite element dynamic models for long-span cable-stayed bridges[J].Journal of South China University of Technology,1999,27(11):51-56.(in Chinese)

包立新,李小珍,卫星,等.宜宾长江公路大桥斜拉桥抗震性能评价[J].工程力学,2008,25(2):174-182.Bao Lixin,Li Xiaozhen,Wei Xing,et al.Evaluation of seismic resistance capacity for Yibin Yangze River cable-stayed bridge[J].Engineering Mechanics,2008,25(2):174-182.(in Chinese)

普瑞斯特雷M J N.桥梁抗震设计与加固[M].袁万城译.北京:人民交通出版社,1997.

林元培.斜拉桥[M].北京:人民交通出版社,2004.

范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.

重庆交通科研设计院.2008公路桥梁抗震设计细则(JTG/T B02-01)[S].北京:人民交通出版社,2008.

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