Design of long span steel pipe tied arch bridge with integral hoisting offshore

Abstract

taking an 84m span offshore all steel tied arch bridge of a port as an example, this paper introduces the application of steel tied arch bridge in Wharf approach bridge. The bridge is welded as a whole in the factory and hoisted as a whole on site by large floating crane. In this paper, by comparing the static, dynamic, seismic and wind resistance of concrete-filled steel tube arch rib and all steel arch rib, it is concluded that the steel arch rib is more suitable for the bridge. Through the comparison between flexible suspender and steel suspender, it is proposed that steel suspender is used in this bridge. The optimized design of all steel tied arch bridge reduces the process of pouring arch rib concrete and tensioning steel suspender, which has great economic significance and application value.