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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

27卷

期数:

2010年03期

页码:

24-28

栏目:

出版日期:

2010-09-20

文章信息/Info

Title:

Influence Analysis of Rise-span Ratio on Force of Suspension Bridge

作者:

唐茂林¹,宋晖²,林恰¹,沈锐利¹,王晓东²

1. 西南交通大学 桥梁工程系,四川 成都 610031; 2. 中交公路规划设计院有限公司,北京 100088

Author(s):

TANG Mao-lin¹, SONG Hui², LIN Qia¹, SHEN Rui-li¹, WANG Xiao-dong²

1. Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. CCCC Highway Consultants Co., Ltd., Beijing 100088, China

关键词:

悬索桥;  BNLAS;  单跨简支结构;  活载;  矢跨比

Keywords:

suspension bridge;  BNLAS;  single-span simply supported structure;  live load;  rise-span ratio

分类号:

U448.25

DOI:

-

文献标志码:

A

摘要:

为了研究不同矢跨比对悬索桥结构受力的影响,以西堠门大桥为原型,利用西南交通大学开发的桥梁非线性计算软件BNLAS,建立了主缆跨度为485 m+1 650 m+485 m、加劲梁为单跨简支结构体系的双塔单跨悬索桥有限元模型; 比较了不同矢跨比(1/8、1/9、1/10、1/11、1/12、1/13、1/14、1/15)下悬索桥结构受力的变化。分析结果表明:矢跨比的改变将对结构整体刚度产生影响,从而对结构不同荷载作用效应产生不同程度的影响。

Abstract:

In order to study the influences of different rise-span ratios on structural force of suspension bridge, taking Xihoumen bridge as prototype, authors established the finite element model by using bridge nonlinear calculation software BNLAS, which was developed by Southwest Jiaotong University. This model was a twin towers single-span suspension bridge and its main cable span was 485 m+1 650 m+485 m, it had single-span simply supported girder. The structural forces of suspension bridge with different rise-span ratios(1/8,1/9,1/10,1/11,1/12,1/13,1/14 and 1/15)were compared. The analysis results show that different rise-span ratios change the stiffness of structure, and lead different load effects.

参考文献/References:

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　NIE Li-fang,SHEN Rui-li,TANG Mao-lin,et al.Secondary Stress Analysis of Main Cable of Suspension Bridge Considering Bending Rigidity[J].Journal of Architecture and Civil Engineering,2010,27(03):59.

备注/Memo

备注/Memo:

收稿日期:2010-07-02
基金项目:“十一五”国家科技支撑计划项目(2008BAG07B05)
作者简介:唐茂林(1973-),男,四川乐至人,副教授,工学博士,E-mail:tmllpl@126.com。

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更新日期/Last Update: 2010-09-20