| 摘要 |
The present invention provides an opened upper part type-improved girder bridge structure comprising; a stepped pier (100) or an abutment (100) of a road rotation part; a plurality of bridge seat supporters (510); a plurality of bridge seat devices (530); a plurality of sole plates (550); a plurality of opened upper part type-steel guiders (200); a plurality of girder connection trusses (300) installed in spaces between the opened upper part type-steel guiders (200); and an inclined slab (400). The soleplates (550) are substituted for the inclined soleplates (550′) having each upper part manufactured with a slope corresponding to the slope of the inclined slab (400). The opened upper part-steel girders (200) manufactured with a slope are installed on inclined upper surfaces of the sole plates (550). The girder connection trusses (300) are substituted for symmetry trusses (300′) having each upper part manufactured to have a slope and a shape equal to the opened part type-steel girders (200). The inclined slab (400) is substituted for a uniform inclined slab (400′) having a uniform thickness. Moreover, the extended line of a steel girder inner frame (210) installed on the upper part of an interior of each opened upper part type-steel girder (200) and the upper frame (310′) of each symmetric truss (300′) has a grade equal to the grade of the slanted surface of the inclined slab (400). |
