Analysis on Construction Technology of Swivel Structure of Upper-span Railway Bridge
In order to analyze the construction technology of the swivel structure of the upper-span railway bridge,combined with the actual situation of the swivel bridge spanning the Beijing-Guangzhou Railway on the Huaibin-Xinyang Expressway from Xixian to Xingji,the construction technology of the lower turntable,spherical joint and upper turntable was analyzed.According to the construction points of the swivel traction system,combined with the actual engineering,the problems encountered in the construction and the solutions were analyzed from the aspects of foundation pit protection,concrete hydration heat and installation of lower ball hinges and slideways.The construction of the swivel structure is relatively difficult,so it is necessary to strictly control each process and solve various problems encountered in the construction,so as to ensure the construction of the swivel structure of the upper-span railway bridge without affecting the normal operation of the existing railway.The task was successfully completed,and great economic and social benefits were obtained,which is worth promoting in the construction.
railway bridgeswivel structurespherical hingeslidewayswivel traction system
NETL
NSTL
万方数据
