[1]李宏江,张劲泉,李万恒,等.PC斜拉桥辅助墩拉力摆断裂后的状态模拟[J].深圳大学学报理工版,2010,27(3):280-285.
　LI Hong-jiang,ZHANG Jin-quan,LI Wan-heng,et al.Simulation on the state after fracture of tension rocker bearing cables at auxiliary piers in a PC cable-stayed bridge[J].Journal of Shenzhen University Science and Engineering,2010,27(3):280-285.
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PC斜拉桥辅助墩拉力摆断裂后的状态模拟()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年3期
页码:
280-285
栏目:
土木建筑工程
出版日期:
2010-07-30

文章信息/Info

Title:
Simulation on the state after fracture of tension rocker bearing cables at auxiliary piers in a PC cable-stayed bridge
文章编号:
1000-2618(2010)03-0280-06
作者:
李宏江; 张劲泉; 李万恒; 蒋含莞
交通运输部公路科学研究院，北京 100088
Author(s):
LI Hong-jiang; ZHANG Jin-quan; LI Wan-heng; and JIANG Han-wan
Research Institute of Highway
the Ministry of Communications
Beijing 100088
P．R．China
关键词:
桥梁工程; 预应力混凝土; 斜拉桥; 反演分析; 永和大桥
Keywords:
bridge engineering; prestressed concrete; cable stayed bridge; inversion analysis; Yonghe Bridge
分类号:
U 445.7
文献标志码:
A
摘要:
以天津永和大桥拉力摆断裂为例，介绍辅助墩拉力摆的断裂情况及其成因．为实现拉力摆断裂后的结构状态模拟，分析了拉力摆断裂引起的结构状态指标(桥面线形、塔顶偏位、索力及辅助墩支座脱空等)的变化，给出拉力摆断裂后结构状态模拟的目标和误差控制准则．在分析斜拉索索力与结构变位指标相关性的基础上，研究了拉力摆断裂后结构状态模拟的实现途径及步骤，形成一种基于现状检测结果和索力调整的PC斜拉桥结构状态反演分析技术．模拟计算结果表明，该分析技术能较全面反映检测结果，与结构实际受力状态吻合，有工程应用价值．
Abstract:
The fracture and the causes of its tension rocker bearing cables installed at auxiliary piers of the Yonghe Bridge in Tianjin were addressed．The structural state indexes such as the deck alignment，displacements at top of pylons，stayed cable forces and disengaging distance between compression bearings and its main girder were analyzed．The objectives and error control criteria for structural state simulation were presented．Moreover，the correlations of cable stayed forces and structural deformation indexes are analyzed，and the method of structural state simulation was studied．Finally，an inversion analysis method based on adjusting cable stayed forces was established．Calculation results show that this method can fully reflect detection results and actual structural state changes，and it can be useful to other projects．

参考文献/References:



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备注/Memo

备注/Memo:
收稿日期：2010-03-15
基金项目：交通部西部交通建设科技资助项目(200731822340)
作者简介：李宏江(1973-)，男(汉族)，河北省迁安市人，交通运输部公路科学研究院副研究员、博士.E-mail：hj.li@rioh.cn
更新日期/Last Update: 2010-07-30