CONSTRUCTION METHOD OF CONTINUOUS BRIDGE USING PRECAST PANEL AND STEEL BOX GIRDER

摘要

PURPOSE: A construction method of a continuous bridge using a precast panel and a steel box girder is provided to improve structural efficiency and reduce steel amount because a bottom slab concrete resists tension stress at a continuous point. CONSTITUTION: A construction method of a continuous bridge using a precast panel and a steel box girder comprises following steps. Manufactured is a precast panel(10) including a shear pocket, a tendon(14), and an anchorage(16). The tendon applies compressed stress on the precise panel. The precast panel is installed on a steel box girder(20) having an opened cross section and is synthesized to manufacture a continuous point girder(40). The continuous supporting point girder is temporarily installed on the bridge post and is connected to a positive moment girder(42) so that bottom slab concrete(44) is poured to expose the end of the precast panel.