SOCKET MEMBER, COMPOSITE BRIDGE USING SAME AND STEEL GIRDER AND CONSTRUCTION METHOD THEREOF

摘要

The socket member (200) of the present invention comprises an inserting unit (190) into which a steel girder (200) installed at the top of an abutment (10) is inserted to allow expansion and contraction of the steel girder (200), and has a structure where both side surface units, the top/bottom surface units, and the rear surface unit of the inserting unit (190) are synthesized. The composite bridge using the socket member (200) of the present invention comprises: an abutment (10); a socket member (100) installed on the top of the abutment; a steel girder (200) whose end is inserted into the socket member (100); floor plate concrete (20) formed on the top of the steel girder (200) into one body; corner unit concrete (30) formed to surround the top of the abutment (10) and the socket member (100); and, a distancing member (300) combined with the end of the floor plate concrete (20) to let the corner concrete (30) and the floor plate concrete (20) move separately while installed on the top of the steel girder (200). Since the socket member (200) considering the maximum expansion quantity and the maximum contraction quantity of the steel girder is installed, the steel girder (200) made into one body with the floor plate concrete (20) is inserted into the socket member (200) to be free from transformation by temperature, dry contraction, and creep. Therefore, expansion and contraction of the top structure, which is the girder with the floor plate concrete added, is possible while maintaining the Rahmen bridge type without an elastic support fixture, and the span length can be longer than that of a Rahmen bridge.;COPYRIGHT KIPO 2016