小位移顶升梁体更换支座的施工方法

Bearing replacement methods of small-displacement lifting beam

以高作桥支座更换为依托,为满足支座取出和放入的空间要求,对梁体小位移(不大于2 mm)向上顶升,并对支座上、下垫石进行了修补和调平处理,确保支座上、下面水平,阐明了不中断交通的情况下支座更换的施工工艺和注意事项。

Taking viaduct bridge bearing replacement as the background, in order to meet bearing taken into and out spaee demands, the paper makes small-displacement beam lifting （within 2 mm） , repairs and levels the cushion stones up and down the bearing for guarantee bearing top and bottom horizontal, and illustrates bearing replacement construction technologies and matters without interrupting the traffie, with a view to provide some guidance.