Crack Analysis and Reinforcement Design of an Overpass
胡丽妹 HU Li-mei
（广州市市政工程设计研究总院有限公司，广州 510060）
（Guangzhou Municipal Engineering Design and Research Institute Co.，Ltd.，Guangzhou 510060，China）
摘要： 桥梁加固一般指通过对构件的补强和结构性能的改善来恢复或提高现有桥梁的承载能力，以延长其使用年限，适应现代交通运输的要求[1]。目前我国桥梁加固设计存在的主要问题是病害的诊断，桥梁病害诊断是进行桥梁加固设计的前提和基础，只有诊断清楚，才能对症下药。桥梁检测是病害诊断与分析的重要手段，混凝土结构裂缝是反映病害的晴雨表，裂缝分析是桥梁检测的主要内容。本文以芳村大道东立交桥加固设计为背景，首先对旧桥承载能力进行复核验算，分析裂缝原因，并给出加固维修方案，加固设计分析可为同类型问题提供有益的参考。
Abstract: Bridge reinforcement generally refers to restoring or improving the bearing capacity of existing bridges through the reinforcement of components and improvement of structural performance, in order to extend their service life and meet the requirements of modern transportation. At present, the main problem of bridge reinforcement design in my country is the diagnosis of disease. Bridge disease diagnosis is the premise and foundation of bridge reinforcement design. Bridge detection is an important means of disease diagnosis and analysis. Cracks in concrete structures are a barometer of disease, and crack analysis is the main content of bridge detection. This paper takes the reinforcement design of Fangcun Avenue East overpass as the background, firstly, the bearing capacity of the old bridge is checked and checked, the reasons for cracks are analyzed, and the reinforcement and maintenance plan is given. The reinforcement design analysis can provide a useful reference for similar problems.
关键词： 承载能力；结构裂缝；加固设计
Key words: bearing capacity；structural cracks；reinforcement design
中图分类号：U445.7+2 文献标识码：A 文章编号：1006-4311（2022）21-084-03
DOI:10.3969/j.issn.1006-4311.2022.21.026.
文章出处：胡丽妹. 某立交桥裂缝分析及加固设计[J]. 价值工程,2022,41(21):84-86.
|
