混凝土梁桥常见病害分析及加固技术

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，许多在役桥梁都出现了不同程度的病害，不少桥梁甚至失去正常的承载和通行能力，以至于不得不停止通行．论述混凝土粱桥经常出现的病害及其病害产生的原因，着重介绍各种病害常用加固方案和它的加固机理、适用范围、加固工艺，并结合工程加固实例，详述其加固计算方法与步骤．

The Common Defect Analysis and Strengthening Techniques of Concrete Beam Bridges

Many bridges which are in service appear certain kinds of defect because of the changes of running condition, improper design and construction, disaster load and environmental function ete, many of them have to stop running because of losing the normal bearing and surpassing ability. The paper states the defect which always appear in concrete beam bridges and the reasons of its arousing, and mainly emphasizes the strengthening scheme, strengthening principle, application scope and strengthening techniques on the common defect. The calculating method and process are explained through the real strengthening design in detail.