BRIDGE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a bridge structure being a suspension bridge structure constituted by a cantilever structure and a tensile structure having high durability irrespective of its reduced weight, and facilitating work for reproduction.SOLUTION: The bridge structure is constituted of an upper structure and a substructure formed of bridge piers and abutments. The upper structure is formed of: a tension structure formed by pulling a plurality of thread-noded steel bars formed of high tensile strength steel and arranged in parallel with a main girder; a pair of cantilever box girders formed of a steel cantilever girder extended in the horizontal direction and a cantilever box girder extended in the horizontal direction and having both ends having nonuniform cross sections, and installed on both of opposing banks; and anchoring parts for anchoring the thread-noded steel bars on the steel concrete composite abutments. The substructure is formed of the steel concrete composite abutments and the bridge piers supporting the cantilever box girder.