大跨径钢桥钢箱梁锈蚀病害分析及养护措施  

Disease Analysis and Maintenance Measures for Rust of Steel Box Girder of Large-span Steel Bridge

作　　者：祝龙 Zhu Long(Liaoning Transportation Development Center,Shenyang 110005,China)

机构地区：[1]辽宁省交通运输事业发展中心,沈阳市110005

出　　处：《北方交通》2021年第7期4-7,共4页Northern Communications

基　　金：辽宁交通科技项目(201513)。

摘　　要：目前我国大跨径钢结构桥梁较多,但普遍存在大跨度钢桥养护管理经验不足、对钢桥病害认识较少的现象。对国内外钢桥锈蚀情况展开调研,分析病害成因可知,锈蚀因素主要是环境因素、构造因素、施工因素及养护因素,提出一方面要从设计角度做好结构细部设计,另一方面要在钢桥养护管理中积累经验,及时发现并处理病害。对滨海公路辽河大桥主桥钢箱梁内部锈蚀病害及其成因进行了系统分析,并提出对公路钢桥运营期间的维护方案及养护措施。There are many large-span steel structure bridges in China at present.The understanding on the diseases of steel bridges is less due to the insufficient experience of maintenance and management of large-span steel bridges.The corrosion of steel bridges at home and abroad is investigated and the causes of the diseases are analyzed.The corrosion factors mainly include environmental factors,structural factors,construction factors and maintenance factors.On the one hand,the detailed design of structure should be done from the design point of view,on the other hand,the experience should be accumulated in the maintenance and management of steel bridge,and the diseases should be found and dealt with in time.The internal corrosion disease and its causes of the steel box girder on the main bridge of Liaohe bridge over the coastal highway are systematically analyzed,and the maintenance schemes and maintenance measures during the operation of the steel bridge over the highway are put forward.

关 键 词：钢箱梁 锈蚀 维修方案 养护措施 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]