SEPARATE OVERHANGING CONSTRUCTION METHOD OF CONCRETE BRIDGE SUPERSTRUCTURE AND CONCRETE BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a separate overhanging construction method of a concrete bridge superstructure, which enables a construction period and cost to be reduced, and a concrete bridge.SOLUTION: A separate overhanging construction method of a concrete bridge superstructure comprises following processes: a formwork installation process to install a block construction formwork at a construction position of the block adjacent to an existing block by making a formwork moving carriage support the formwork; a reinforcement disposing process to dispose reinforcements for the block that were assembled in advance within the formwork and keep the reinforcement unconnected with reinforcements of the existing block; a sheath disposing process to dispose and connect a sheath for PC steel insertion to the existing block; a concrete placement process to place concrete in the formwork in which the reinforcements are disposed; a formwork removal process to remove the formwork; and a prestress introduction process to introduce prestress to a concrete block. After these processes are implemented, next block construction is implemented.SELECTED DRAWING: Figure 1