摘要
罗浮山东江博罗大桥主桥为100m跨下承式系杆拱桥,该桥主墩(大悬臂空心墩)悬臂根部出现了4mm宽的弯拉裂缝。针对该桥典型病害现状,分析了其成因,并通过加固方案比选,最终确定采用新增盖梁对旧桥墩悬臂减载的方法进行加固,取得了较好效果,可供同类病害处治参考。
The main bridge of Dongjiang Boluo Bridge in Luofu Mountain is a tube tied arch bridge with below supports over the Dongjiang River by 100 meters. Recently, a 4-mm-wide flexural crack was found at the root of the big cantilever of the hollow pier. The typical situation of the disease and the reasons were analyzed. By comparing several reinforcement schemes, the method addinga new beam to reduce the loads of the old one so as to reinforce the cantilever is adopted, and better results were achieved, which can provide reference for the similar disease treatment.
出处
《筑路机械与施工机械化》
北大核心
2011年第4期69-72,共4页
Road Machinery & Construction Mechanization
关键词
系杆拱桥
悬臂空心墩
裂缝
加固
bowstring arch bridge
cantilever hollow pier
crack
reinforce
