Construction method of a series of box-like structures and girders and arch ribs

摘要

[Problem] In bridge construction with girder erection, construction cost is high in the case of long span girder. To provide an installation method to solve weak points such as swing and vibration of a suspended deck bridge and permanent anchor structure. A method of constructing a girder or an arch-shaped structure in a state in which the girder 1d or a convex connection structure is suspended on a cable 1b like a suspended floor bridge without adopting a garter or a support work. . Then, they are placed on the abutment 13 to make a permanent structure. Furthermore, it is possible to construct a firmer connection girder and a convex connection structure at an early stage by injecting a solid material into the inside of the girder and the arch structure. [Selected figure] Figure 3