市政技术2026，Vol.44Issue(6)：218-225,338,9.DOI:10.19922/j.1009-7767.2026.06.218
桥梁抗倾覆加固措施实践与应用研究
Research on Practice and Application of Anti-overturning Reinforcement Measures for Bridges
李瀛1
作者信息
- 1. 北京市政路桥股份有限公司,北京 100161
- 折叠
摘要
Abstract
To address the practical problems of prone to lateral overturning of single-column pier bridges under ec-centric loads,an anti-overturning reinforcement measure centered on pier column section enhancement and beam-end restraining devices is proposed in this paper.Firstly,the reinforcement measure involves enlarging the cross-section of original pier columns to improve the flexural rigidity;Secondly,steel limiting devices in installed at the end of the beam to restrain lateral displacement;At the same time,the synchronous jacking technology is applied to replace and set new tension-resistant bearings to ensure construction safety by full-process strain and displacement monitoring.Results show that the reinforcement measures significantly improve the anti-overturning safety coeffi-cient without altering the original structural force system.The real bridge verifies that the critical transverse over-turning load is increased by about 35％,and the lateral displacement at beam ends is effectively controlled within 5 mm.The proposed reinforcement measures features minimal construction disturbance and strong reversibility,of-fering a reliable solution for similar single-column pier bridges.关键词
桥梁限位装置/抗倾覆加固/独柱墩桥梁Key words
bridge restraining device/anti-overturning reinforcement/single-column pier bridge分类
交通工程引用本文复制引用
李瀛..桥梁抗倾覆加固措施实践与应用研究[J].市政技术,2026,44(6):218-225,338,9.
