广东公路桥梁（混凝土结构）典型病害现状成因分析及加固整治（一）

由于运营条件的改变，设计及施工不当，灾害荷载和环境作用等原因，许多在役桥梁出现了病害。针对广东省主要公路桥梁典型病害现状，分析了其成因，并选择有代表性的工程实例介绍了相应的加固方案，同时简述了桥梁加固技术的发展及对新建桥梁的思考。因篇幅较长，分两次刊登。

Cause and Reinforce and Recondition Case Based on the Typical Highway Concrete Bridge Disease Behavior in Guangdong Province

Due to many reasons,such as the change of the operating conditions,the default of the design and construction,the disaster loading and the surroundings action etc,many bridges in active service occur many kinds diseases. Aimed to the typical expressway bridge diseases in the Guangdong province area ,this paper analyses its reasons and introduces the corresponding reinforce case,meanwhile,puts forward the judgment about the development of the bridge reinforcing technology and the thought of the new bridge's design and construction.