INSTALLATION STRUCTURE OF BRIDGE

摘要

PURPOSE: An installation structure of a bridge is provided to prevent a bridge from twisting by a dead load or a live load and to improve the safety of the structure by accurately analyzing the secondary movement of cross beams. CONSTITUTION: An installation structure of a bridge comprises a steel box part(300) and negative reaction restraint parts(500). The steel box part is placed on the top ends of supports(200) protruded from the top of foundations(100) through bridge bearings(400). The steel box part is composed of steel box beams(310,310') and cross beams(320). The negative reaction restraint parts are formed in the steel box beams and the cross beams in which negative reaction is occurred by bending moment and torsional moment. Each negative reaction restraint part is composed of a first hollow member(510), multiple studs(S), and filler(C). The first hollow members are inserted into the steel box beams. The studs are coupled to the inner sides of the steel box beams and the outer side of the first hollow members.