UPPER STRUCTURE FOR BRIDGE

摘要

The present invention relates to an upper structure for a bridge, the upper structure comprising: a coping (120) installed on the upper end of a bridge pier; and girders (130) mounted to the coping, wherein the coping has slots (122a) for insertion of the girders (130), and the girders (130) pass through the slots (122a) and are mounted to the coping (120) via dry joints. According to this configuration, construction costs can be reduced since girders can be applied in succession without the need for separate bridge bearings, structural efficiency is provided since the girders and coping behave integrally, structural elegance is provided since slots are formed in the coping and the girders are mounted by being inserted into the slots and thus there is no excessive exposure of the upper portion of the coping. In addition, dry joints are created with stress between the girders and coping by transverse (the longitudinal direction of the coping) steel cables, thereby integrating the girders and coping, and thus the rigidity of the sections of bridge piers (support points) is increased and the resistance to the negative moment is consequently increased, and since the girders and coping are integrated without separate on-site work, structural efficiency is provided while the construction period is reduced.