COMPOSITE GIRDER USING INNER MOLDING MEMBER AND BRIDGE CONSTRUCTION METHOD THERWITH

摘要

PURPOSE: A composite wood with an inner hollow member and a bridge construction method using the same are provided to reduce the self-weight of the whole composite girder by placing concrete into a spaced excluded by the inner hollow member. CONSTITUTION: A composite wood with an inner hollow member comprises an outer composite member(200), an inner hollow member(100), and concrete. The outer composite member comprises a lower plate, a web, and an upper flange(230). The lower plate comprises steel beams to form an inner space(S). The web comprises a fixed installation member(240) with a connection ring. The upper flange is formed into a horizontal plate shape. The inner hollow member is buried under the concrete placed into the inner space of the outer composite member. The inner hollow member comprises a vertical stiffener(110) and a horizontal stiffener(120). The lower part of the vertical stiffener is attached to the upper surface of the lower plate of the outer composite member. The horizontal stiffener horizontally penetrates a block member. The concrete is placed so that the inner hollow member is buried under the outer hollow member.