光明桥的病害检测和维修加固

夏 平    陶 立

（上海奉贤区公路管理署  201400）

摘  要：梁桥经过拓宽改建，形成了新、老梁体拼接的组合桥。此类桥梁由于新、老梁体的刚度不同及基础沉降原因出现拼接处开裂、错位等病害。本文以南奉公路光明桥为例，介绍了此类桥梁的检测、分析、病害修复的过程，对桥梁维修后的运行效果进行了跟踪观测。

关键词：桥梁不均匀沉降；桥梁检测；树根桩基础悬臂墩；CFRP碳纤维加固；TST弹性伸缩装置

Disease Detection and Reinforcement of Guangming Bridge

XIA Ping  TAO Li

Abstract: When girder bridge is widened, a combined bridge is formed consisting of both new and old girders. The connecting part of the bridge is tending to crack and transfer because of the rigidity difference in the two beams and foundation settlement. This article uses the Guangming Bridge on Nanfeng highway as an example to introduce the detection, analysis and repair process of this kind of bridge. The tracking and observation results after the reconstruction is also shown too.

Keyword: bridge unequal settlement, Beam Detection, root stake foundation to hang the arm pier，CFRP carbon fiber reinforce, TST elasticity flex slot ,