| 摘要 |
PROBLEM TO BE SOLVED: To reduce the construction cost of a bridge girder by joining a following girder block to a preceding girder block without lifting the whole weight of the following girder block to simplify and diminish a device for turning the following girder block on the preceding bridge girder block. SOLUTION: When joining the longitudinal other end 2 of the adjacent following girder block B (B2) to one longitudinal end 1 of the previously provided preceding girder block B (B1) in constructing the bridge girder by connecting a plurality of girder blocks B, the upper face 3 side of one end 1a of the preceding girder block B (B1) and the upper face 4 side of the other end 2a of the following girder block B (B2) are connected on the preceding girder block B (B1) through a hinge 30, and then the following girder block B (B2) is turned around the hinge 30 to join the other end 2a of the following girder block B (B2) to the one end 1a of the preceding girder block B (B1). COPYRIGHT: (C)2007,JPO&INPIT
|
