HYBRID SUPERSTRUCTURE OF CONTINUOUS BRIDGE FOR SUPRESSING OUT-OF-PLANE BENDING MOMENT ON CROSSBEAMS WHICH SUPPORT STRINGER

摘要

The present invention relates to a superstructure of a continuous bridge, comprising: a girder which is mounted on two or more columns in the longitudinal direction on a substructure of a bridge; A stringer arranged longitudinally on the neutral axis between the girders; A plurality of general beams spaced apart from each other along the longitudinal direction of the composite girder and fixing the column beams to each other while connecting the girders in the lateral direction; A wide width beam formed to have a larger width than the general beam and connecting the two or more connection portions in the horizontal direction and fixing the stringer; A plurality of girders of a plurality of rows are arranged to move in a similar manner to a single plate by arranging a stringer between the girders on the neutral axis, and at the same time, an axial direction Since the wide width beam suppresses the displacement difference, it is possible to reduce the magnitude of the bending moment in the out-of-plane direction generated in the general beam 77, so that a large number of general beams Thereby providing a continuous bridge capable of economically solving the problem of lowering safety.