既有线人工换梁方法

The artificial method of girder replacement in existing railway

以某钢梁桥换梁改造工程为例,通过对该工程现场情况的分析,选用人工横向拖拉法换梁,论述了换梁施工的难点和主要工作量,并对换梁步骤进行了详细介绍,总结了施工中的注意事项,指出采用人工横移法换梁具有经济实用、操作简单、安全性高的优点。

Taking the steel bridge girder replacement transformation engineering as an example,through analyzing its engineering field conditions,the paper selects artificial horizontal pulling methods for girder replacement,discusses girder replacement construction difficulties and tasks,specifically introduces girder replacement procedures,and summarizes construction matters. In the end,it points out advantages of artificial horizontal girder replacing method,such as economic and practical,simple operation and safe and high performance.