EXPANSION DECK MODULE, EXPANSION FOOTPATH AND BRIDGE USING THE SAME

摘要

PURPOSE: An expansion deck module, an expansion sidewalk, and a bridge using the same are provided to prevent damage such as distortion of a handrail with the expansion of an upper plate and prevent a gap from being generated between adjacent foot boards of a deck structure. CONSTITUTION: An expansion deck module includes a plurality of expanding bracket (1300), a plurality of joists, a plurality of foot plates (1320), a first expansion connection unit (1330), and a second expansion connection unit (1340). A plurality of the expanding bracket is installed at a fixed interval in a longitudinal direction of a bridge upper plate which is expansion-jointed. A plurality of the joists is installed on the upper part of the expanding bracket at a fixed interval in the longitudinal direction of the expanding bracket. A plurality of the foot plates is installed on the upper part of the joists. The first expansion connection unit expansion-connects the expanding bracket and the joists so that the expanding bracket is moved by being engaged with the bridge upper plate when the bridge upper plate is expanded. The second expansion connection unit expansion-connects the expanding bracket and the handrail so that only the expanding bracket is moved by being engaged with the bridge upper plate when the bridge upper plate is expanded.