- The advanced method for arrangement of prefabricated reinforcement for each span for Movable Scaffolding System in the double-T girder bridge

摘要

PURPOSE: An installation method by prefabrication of reinforcing bars by spans when constructing a double-T bridge by a movable scaffolding system is provided to improve constructability, to shorten a period of construction and to improve the quality of construction. CONSTITUTION: The installation method by prefabrication of reinforcing bars by spans when constructing a double-T bridge by a movable scaffolding system comprises the steps of: after installing a rail for moving a reinforcement jig on the top of the pre-placed bridge, installing a reinforcement jig on the rail; arranging reinforcing bars by spans on the installed reinforcing jig, then assembling a sheath tube; after completing the assembly of the reinforcing bars and the sheath tube, executing inspection; fastening the reinforcement jig to a spreader beam in a reinforcement jig by a hoist, then lifting; and installing the lifted reinforcement jig on the movable scaffolding form using a hoist, and moving a movable unit of the reinforcement jig to the assembling position of reinforcing bars and assembling reinforcing bars for installing on the next span.