BRIDGE SLAB CONSTRUCTION METHOD AND LATTICE BAR DECK-SHAPED PRECASTCONCRETE PLATE APPLIED THERETO

摘要

Provided is a method of constructing a slab of a bridge in which a plurality of girders are placed parallel to one another on upper surfaces of neighboring piers, a plurality of cross beams are formed between the girders, a plurality of lattice bar deck-shaped precast concrete plates that are separately precast are hoisted and installed by a deck truck, and concrete is placed after a plurality of reinforcing bars are arranged in an upper portion of the precast concrete plate, to cure a composite slab formed integrally with the precast concrete plate. In a precasting process of the lattice bar deck-shaped precast concrete plate, a plurality of reinforcing bars are arranged in a rectangular frame to be orthogonal in a lengthwise direction and a widthwise direction, a plurality of truss frames are arranged to protrude from the rectangular frame at both symmetrical positions with respect to a center of a lengthwise direction, and concrete is placed and cured in the rectangular frame so that the precast concrete plate maintains a high strength over a compression strength of the slab.