Bridge structure supported by steel box girder and central separator

摘要

The present invention provides a bridge structure supported by a trapezoidal steel girder box and a median strip support, capable of properly absorbing and distributing a bending moment applied to a bridge. According to the present invention, the bridge structure comprises: the inverse trapezoidal structured steel girder box (10) having bilateral symmetry; the median strip support (20) formed in a continuous truss structure, having a lower part fixated and coupled to a central part of a lower surface (12) of the steel girder box (10), and having an upper part vertically protruding from an upper surface (12) of the steel girder box (10) at a predetermined height; a plurality of first and second reinforcement partitions (32, 36), which are a pair having bidirectional symmetry, orthogonally installed along the inside of the steel girder box (10); a plurality of first side surface supports (42) disposed on each first reinforcement partition (32) in parallel, wherein one side part is fixated and coupled to a first side surface (12) of the steel girder box (10) and the other side part protrudes at a predetermined length while being orthogonal to the first side surface (12) of the steel girder box (10) and a plurality of second side supports (46) disposed on each second reinforcement partition (36) in parallel, wherein one side part is fixated and coupled to a second side surface (14) of the steel girder box (10) and the other side part protrudes at a predetermined length while being orthogonal to the second side surface (14) of the steel girder box (10).