| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the joining work of a horizontal beam at a site and reduce transportation cost by assembling beforehand a bridge axial member and a frame member at a factory, joining a steel sheet pile at the site, and casting a cast-in-place concrete after inserting a PC steel material. SOLUTION: A steel panel 21, in which a bottom plate is composed of steel sheet piles 11 and a plurality of bridge axial members 14, in which H-section steels or CT-shape steels, as main beam members 13, are integrally joined together, are connected together, and a frame member 17, in which steel sheet piles 15 are made integral to side plate 16, are assembled and joined beforehand at a factory. And at the construction site, claws of steel sheet piles are integrally joined together and a PC steel material 18 is inserted into a hole of a web surface of the member 13 and side plate 16 and a horizontal beam 19 is precast, and thereafter a cast-in-place concrete 20 is placed. After the concrete 20 is cured, tension is imparted to the steel material 18 to ensure the rigidity in the direction normal to the bridge axis. As a result, manufacturing of horizontal beams and joining work at the site can be eliminated and steel sheet piles of required length only are transported and transportation cost can be reduced. |
