近年来在铁路建设中为了减少路基土方、节省田地,修建了许多长旱桥。此种桥的特点是墩多、高度适中和无水,故适宜采用装配桥墩,促进桥梁建筑现代化,增长经济效益。京秦线银联特大桥是一座跨越铁路、公路的长旱桥,全长1389.61m,共有55个桥墩,高8～9m,具备装配桥墩的良好条件。经方案比选,确定除4个墩需现场灌注外,其余51个墩采用构架式,由预制构件装配而成,可减 In recent years, in the railway construction in order to reduce subgrade earthwork, save the land, built a lot of long-Han bridge. Such a bridge is characterized by more piers, moderately and anhydrous, it is appropriate to use the bridge piers to promote the modernization of bridge construction, increase economic efficiency. Beijing-Qinhuangdao-UnionPay Bridge is a long-span bridge spanning railways and highways. It has a total length of 1389.61m and a total of 55 piers with a height of 8 ~ 9m. It has good conditions for assembling piers. After comparison and selection of programs, it is confirmed that in addition to 4 piers, on-site perfusion is required, and the remaining 51 piers are framed and assembled from prefabricated components and can be reduced