| 摘要 |
PROBLEM TO BE SOLVED: To provide an expansion device which dispenses with placement and curing of concrete on a construction site, and which is not affected by the level of an operator's skill.SOLUTION: An expansion device for a bridge is characterized by being configured as a post-cast material-integrated type in which an expansion part 4 for absorbing displacement of a bridge body 1 and a concrete part 2 provided mainly to integrate the bridge body 1 and the expansion part 4 together are integrated together by shop fabrication. The expansion device for the bridge is provided so that a product can be installed in a bridge blockout part 8, which pre-secures surface smoothness, on a construction site, and an anchor bolt 7 is fixed with a nut 6 by means of an anchor hole 3 provided in the product. The anchor hole 3 is filled with mortar and provided with a cap. |
