【摘要】 通过对哈大桥上行第二松花江桥跨度30 m预应力混凝土简支T梁原桥的4种加固方法的动力试验研究,分析了桥梁在旅客列车及货物列车通过时跨中横、竖向振动规律,并从试验结果出发,对桥梁的加固方法进行了总结和探讨,提出了对既有线此类跨度铁路简支T梁的加固建议。更多还原

【Abstract】 The site experiments for 30m-span pre-stress T-sectional girder in the 2nd Songhuajiang Bridge are studied in this paper.Results of vertical and lateral vibration under passenger trains and cargo trains are analyzed,methods of reinforcement for bridges are discussed and summarized,also some useful advices on reinforcement engineering for similar bridges in existing railway are provided based on experiment results.更多还原