ERECTION METHOD FOR CORRUGATED STEEL PLATE WEB BRIDGE

摘要

PROBLEM TO BE SOLVED: To enhance the junction strength of a corrugated steel plate and a subfloor slab to obtain a sufficient durability in the erection method for a corrugated steel plate web bridge making use of a corrugated steel plate. SOLUTION: A pair of corrugated steel plates constituting a block B(n+1) next to the head block B(n) are previously erected in the condition that a hanging support structure 100 for constructing a subfloor slab is suspended from a pair of corrugated steel plates 16 constituting the head block B(n) of an unexecuted upper floor slab. In this time, a precast corrugated steel plate 18 in which concrete blocks 32 constituting a part of the subfloor slabs 14 is embedded and jointed in the lower end is used as each corrugated steel plate 16 used for the previous erection. In this way, deterioration fear of unification due to bubbles or generation of bleeding resulting from placing concrete jointed under existing concrete members into the under face of the lower end flange of the corrugated steel plate like the conventional cases is eliminated. COPYRIGHT: (C)2004,JPO