STEEL BOX GIRDER JOINT STRUCTURE

摘要

The present invention relates to a girder used as an upper structure of a bridge and, more specifically, to a steel box girder joint structure for joining steel box girders to each other, manufactured in a box shape. The present invention provides the steel box girder joint structure, implemented to join the steel box girders to each other by comprising: a box shaped steel box girder; an inner plate having one portion fixated on and touching an inner side of the steel box girder and remaining portion protruding out of an opened end of the steel box girder; an outer plate having one portion fixated on and touching an outer side of the steel box girder and remaining portion protruding out of an opened end of the steel box girder to form a gap with the inner plate, into which an opened end of another steel box girder can be inserted; a fixated nut inserted into the steel box girder in a state of being fixated in a nut fixating hole formed on the inner plate; and a fixating bolt penetrated through the outer plate and one surface of the steel box girder sequentially from the outside of the steel box girder, and then screw-coupled to the fixated nut.