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京沪铁路沪宁段部分桥梁建于1970年代,在长期运营过程中出现不同程度的病害。梁体更换作为消除病害的有效方式得到广泛应用。以京沪线2665#桥换梁施工为例,对既有线跨河桥梁在河流不断流条件下的换梁施工方法进行研究和探索。
Shanghai-Nanjing section of the Beijing-Shanghai Railway bridge was built in the 1970s, in the course of long-term operation of varying degrees of disease. Beam body replacement as an effective way to eliminate disease is widely used. Taking the construction of 2660 # bridge for Beijing-Shanghai line as an example, the construction method of beam changing for existing bridges and bridges under continuous flow of river is researched and explored.