| 摘要 |
PURPOSE: A complex superstructure of a continuous bridge and a connector used for the same are provided to economically construct a bridge by minimizing the amount of used steel, and to effectively bear negative moment applied to a continuous joint part. CONSTITUTION: A complex superstructure(100) of a continuous bridge comprises a box girder(110), a truss girder(120), a diaphragm(150), and slab concrete. The box girder is installed in an area where positive moment is generated, and comprises a pair of web plates(110b), a pair of lower flanges(110a), and a pair of upper flanges(110c). The truss girder is installed in the area where negative moment is generated, and comprises an upper chord(120b), a lower chord(120a), and a connector(120c). The connector comprises a diagonal member and a vertical member. The diagonal member vertically connects the upper and lower chords to each other. The diaphragm is fixed to the lower flange of the box girder, and comprises a through hole for the upper and lower chords. The slab concrete is tightly combined with the box girder and truss girder. |
