朔黄铁路小唐河大桥加固前后动力性能对比分析

朔黄铁路开通运营以来,出现了桥梁横向振幅较大并且超过允许值的问题。通过对朔黄铁路小唐河大桥加固前后的动力性能检测,分析了小唐河大桥横向振幅较大的原因,对桥梁加固设计起到了指导作用,试验检测证明桥梁加固效果良好。

Analysis on the Dynamic Characteristics Before and After Strengthening the Xiaotanghe Major Bridge of the Shuozhou-Huanghuaguang Railway Line

Since the Shuozhou-Huanghuaguang Railway was open to traffic, the problem of the huge amplitude of lateral vibration occurred, which even exceeded the allowable limit of the bridge. Through analyses of the testing results of the dynamic characteristics before and after strengthening the Xiaotanghe major bridge, the cause of the huge amplitude was determined, some good guidance was given to the strengthening design and finally good results of the strengthening engineering were proved.