第二松花江桥跨度30m简支T梁横向车桥动力性能研究

Study on Reinforcement for 30m-span Simple-support T-sectional Girder in the 2nd Songhuajiang Bridge

笔者通过分析了第二松花江桥跨度30m预应力混凝土简支T梁原桥及实施4种加固方法后,SS8牵引的旅客、DF4牵引的混编列车通过桥梁时,桥梁的横向动力响应,与试验结果进行了对比,总结了既有线铁路简支T梁桥的加固方法,并对该桥梁的加固工程提出建议。

The bridge lateral responses for 30 m-span pre-stressed T-sectional girder in the 2nd Songhuajiang Bridge and its 4 schemes of reinforcement under passeger train and cargo train are analyzed. The calculation result is checked by that of site experiment, reinforcement method of T-sectional girder is summarized and suggestions for the engineering in this bridge are provided.