HINGE SUPPORT STRUCTURE IN MIDDLE SPAN OF MULTI-SPAN BRIDGE

摘要

PURPOSE: A movable hinge point structure and a fixed hinge point structure of an upper structure of a river crossing bridge and a river crossing bridge having multi-spans therewith are provided to reduce construction costs by forming an upper structure of the bridge using a slab. CONSTITUTION: A river crossing bridge having multi-spans with a movable hinge point structure and a fixed hinge point structure of an upper structure comprises abutments, piers, a pier upper structure, and a center upper structure. The abutments are located at both ends of the bridge. The piers are located between the abutments and have multiple spans. The pier upper structure is composed of a slab and is integrated with the piers. The center upper structure is composed of a slab. Both ends of the center upper structures are supported by the pier upper structure.