新建桥梁衔接既有桥梁的安全评估分析
Safety Analysis of Existing Bridge Structure by Newly Built Bridge Roadbed
李冠泽1
作者信息
- 1. 深圳市宝安区湾区发展事务中心,广东 深圳 518000
- 折叠
摘要
文中以某立交道路衔接工程对已建成国展立交桥梁安全评估为例,采用规范公式、桥梁通等计算软件,分析新增荷载对既有桥梁盖梁、桩基的影响,通过分析裂缝、轴力、弯矩等数据,校核设计是否安全并提出相应建议.计算结果表明,新建16m跨预制小箱梁对已建30m跨预制箱梁产生的附加弯矩引起的盖梁、桩基裂缝最大值均满足控制标准要求.
Abstract
This article takes a certain overpass road connection project as the background to evaluate the safety of the already built Guozhan o-verpass bridge.Using calculation software such as standard formulas and bridge connections,the impact of new loads on the existing bridge cover beams and pile foundations is analyzed.By analyzing data such as cracks,axial forces,and bending moments,the design is checked for safety and corresponding suggestions are proposed.The analysis results indicate that the maximum values of cap beam and pile foundation cracks caused by the additional bending moment generated by the newly constructed 16m span prefabricated small box girder on the existing o-verpass bridge meet the control standards.
关键词
新建桥梁/盖梁/嵌岩桩/裂缝Key words
Newly built bridges/Cover beam/Rock socketed piles/Cracks引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据