STEEL FLOOR SLAB REINFORCING CONSTRUCTION METHOD AND PRECAST REINFORCING SLAB USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To easily and quickly construct a steel floor slab at a job site in a short period on a deck plate upper surface of an existing or new steel floor slab by carrying in for repairing the floor slab or for a new job site since a fatigue crack is caused in a welding part of a deck plate and a trough rib by long-term use in the steel floor slab such as a superhighway. SOLUTION: This precast reinforcing plate 3 is laid in layers on the deck plate 1 of the steel floor slab 4, and its slab is fixed to the deck plate. One layer object or a laminated structure object is used as the precast reinforcing slab. The one layer object can be formed as a concrete slab or a precast concrete slab, and the laminated structure can be formed as a lamination of a steel plate and concrete. A fixation of the precast reinforcing slab to the deck plate can be performed by simultaneous use or any one of bolt fastening and adhesion by an adhesive 2. The precast reinforcing slab of the laminated structure connects mutual laminated floor slabs. A through-hole is bored in the precast reinforcing slab, and even if its through-hole is used as a guide when boring a hole in the steel floor slab, the through-hole can also be used for bolt fastening. COPYRIGHT: (C)2007,JPO&INPIT