| 摘要 |
PURPOSE: A pre-stressed-precast-segmental spandrel open concrete arch bridge and a constructing method thereof are provided to improve outer appearance in comparison with a concrete bridge. CONSTITUTION: A pre-stressed-precast-segmental spandrel open concrete arch bridge comprises a base concrete(1), a pre-stress free cast segment concrete arch rib(2a), and a concrete upper plate(4). The base concrete is vertically and alternately installed. A mount groove(1b) is formed on the lower part of the abutments of a bridge. A mounting part of the pre-stress free cast segment concrete arch rib is mounted on the mount groove. The mounting part is fixed with be buried in the concrete. The concrete upper plate is installed between the upper side of the base concrete abutments of the bridge and the central upper side of the stress free cast segment concrete arch rib. |
