CANTILEVER OVERHANGING ERECTION METHOD FOR CORRUGATED STEEL PLATE WEB BOX GIRDER BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a cantilever overhanging erection method of a corrugated steel plate web box girder bridge which contributes to the shortening of a construction period and the reduction of construction cost.;SOLUTION: During the execution of the form mounting work and the bar arrangement work of upper and lower floor slabs mounted to upper and lower edges of a corrugated steel plate web 41 having a length corresponding to one block of a bridge body overhanging from an existing bridge body block 50 and connected to the body block, the overhanging and connecting work of a new corrugated steel plate web 42 having a length corresponding to one block of the bridge body which is one block ahead of the corrugated steel plate web 41 is simultaneously executed by using an overhanging portion 231 overhanging frontward from the front end of an erection work vehicle 10. Thus an overhanging and connection step is excluded from a critical path.;COPYRIGHT: (C)2008,JPO&INPIT