Discussion on the detection of defects in municipal bridge expansion joints and long-term maintenance strategies
市政桥梁伸缩缝病害检测与长效维护策略探讨

摘要

市政桥梁伸缩缝是桥梁结构的重要组成部分，其病害直接影响桥梁的安全性和耐久性。本文通过分析伸缩缝病害类型及成因，探讨检测技术与长效维护策略。研究发现，病害检测需结合多种技术手段，维护策略应注重预防性维护与全生命周期管理。研究成果为市政桥梁伸缩缝的科学管理提供理论支持，对保障桥梁安全运营具有重要意义。

Abstract

Expansion joints are a crucial component of bridge structures, and their defects directly affect the safety and durability of bridges. This paper explores the types and causes of joint defects, as well as detection technologies and long-term maintenance strategies. The study finds that defect detection requires the integration of various technical methods, and maintenance strategies should focus on preventative maintenance and whole lifecycle management. The research results provide theoretical support for the scientific management of municipal bridge expansion joints and are of great significance for ensuring the safe operation of bridges.