UNIT PRESTRESSED COMPOSITE BRIDGE PRODUCED BY ASSEMBLING PRESTRESSED COMPOSITE BEAMS ON THE GROUND AND POURING AND CURING AN UPPER SLAB OF A BRIDGE AND A PRESTRESSED COMPOSITE BRIDGE CONSTRUCTION METHOD FOR SHORTENING A TERM OF CONSTRUCTION BY MAKING THE BRIDGE MOUNTING SPEED FAST AND PREVENTING ACCIDENTS BY REDUCING WORKS IN THE HIGH PLACE

摘要

PURPOSE: A unit prestressed composite bridge produced by assembling prestressed composite beams on the ground and pouring and curing an upper slab of a bridge and a prestressed composite bridge construction method are provided to prevent accident by reducing the arrangement of steel bars and a mold and concrete pouring works for completing the bridge slab in the high place. CONSTITUTION: A prestressed composite beam is produced by pouring lower casing concrete into a lower flange(3) of an H-shaped steel(1). A lifting device is installed on the upper part of an upper flange(2). The prestressed composite beams are connected to each other by an end cross beam(30). A unit prestressed composite beam bridge is produced by pouring and curing a haunch unit and an upper slab of the bridge to the prestressed composite beam. The unit prestressed composite beam bridge is assembled and mounted to a pier and an abutment by using the lifting device.