公路桥梁伸缩装置病害的成因与防治

公路桥梁伸缩装置,在桥梁结构中直接承受车轮荷载的反复冲击作用,易受破坏且难以修复。对桥梁伸缩装置破坏的成因进行分析,指出桥梁伸缩装置伸缩量的确定与施工是防治桥梁伸缩缝病害的关键,并介绍了伸缩量的计算方法和施工要点,以确保桥梁伸缩缝的质量。

Defect Analysis and Preventive Measures of Bridge Expansion Device for Highway

Bridge expansion device directly bears the repeated impact of wheel load in bridge structure,which is easy to be damaged and difficult to be repaired.Through analyzed the damage cause of bridge expansion device,this paper gets a conclusion that the extent of expansion and construction of bridge expansion device are the key points for control of bridge expansion joint damage.At the same time,the calculation method of expansion value is presented.In the end construction control points of expansion device are ...