竖转施工刚构拱桥转动铰接触应力有限元分析

姚国文; 陈生华; 周志祥

doi:10.11835/j.issn.1674-4764.2008.03.014

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竖转施工刚构拱桥转动铰接触应力有限元分析

更新时间：2023-11-28

- 竖转施工刚构拱桥转动铰接触应力有限元分析
- Finite Element Analysis of the Contact Stress of the Rotary Hinge in the Rigid Frame Arch Bridge Constructed in a Vertically Downward Rotating Manner
- 土木与环境工程学报（中英文） 2008年30卷第3期
- 作者机构：
- 作者简介：
- 基金信息：
  
  西部交通建设科技项目，重庆交通大学结构工程重点实验室基金
- DOI：10.11835/j.issn.1674-4764.2008.03.014
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- 纸质出版：2008
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姚国文, 陈生华, 周志祥. 竖转施工刚构拱桥转动铰接触应力有限元分析[J]. 土木与环境工程学报（中英文）, 2008,30(3).

YAO Guo-wen, CHEN Sheng-hua, ZHOU Zhi-xiang. Finite Element Analysis of the Contact Stress of the Rotary Hinge in the Rigid Frame Arch Bridge Constructed in a Vertically Downward Rotating Manner[J]. Journal of Civil and Environmental Engineering, 2008, 30(3).
姚国文, 陈生华, 周志祥. 竖转施工刚构拱桥转动铰接触应力有限元分析[J]. 土木与环境工程学报（中英文）, 2008,30(3). DOI： 10.11835/j.issn.1674-4764.2008.03.014.

YAO Guo-wen, CHEN Sheng-hua, ZHOU Zhi-xiang. Finite Element Analysis of the Contact Stress of the Rotary Hinge in the Rigid Frame Arch Bridge Constructed in a Vertically Downward Rotating Manner[J]. Journal of Civil and Environmental Engineering, 2008, 30(3). DOI： 10.11835/j.issn.1674-4764.2008.03.014.

摘要

转动铰是连接刚构拱桥拱座与拱肋的临时施工构造措施

在放张式竖转合拢过程中

转动铰是全桥转体施工成功与否的关键。通过对八字型刚构拱桥竖转施工过程的接触有限元模拟

研究了转动铰的局部应力分布

分析了转动铰的结构力学性能。实体工程分析表明:转动铰结构整体处于较低的应力状态

局部存在应力集中现象

可通过加强局部构造措施

保证转动铰整体力学性能满足竖转施工的安全性要求。

Abstract

Rotary hinges are temporary joints connecting arch ribs with the abutments of rigid frame arch bridges during the vertically downward rotating construction process.We probed the mechanical properties of a rotary hinge.Its stress distribution was simulated in contact FEM during the vertically downward rotating construction of a rigid frame arch bridge.The results show that nearly the entire structure of the rotary hinge is in a low-stress state with only a minor area in a high-stress state.By strengthening some local structures

rotary hinge construction security could be satisfied by its mechanical properties during vertically downward rotating construction.

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