| 摘要 |
PURPOSE: A prestressed precast segment Rahmen bridge is provided to economically and rapidly construct a bridge and to extend the maximum span up to 25 m by introducing partial prestress. CONSTITUTION: Construction of a prestressed precast segment Rahmen bridge comprises the following steps: arranging a PC steel wire(3) in the neutral axis of a precast Rahmen segment(2) for applying prestress; lifting the precast Rahmen segment through a winch for mounting on the top surface of a foundation concrete part(1a) in parallel; forming a Rahmen bridge by joining a plurality of precast Rahmen segments through a lateral PC steel wire; and integrally fixing a settling part(21) of precast Rahmen segments to the foundation concrete part by secondarily pouring concrete(1b). |
