| 摘要 |
PROBLEM TO BE SOLVED: To provide an expansion joint for concrete structure which can effectively tighten an expansion part of a flexible material to concrete structure and has high sealability.SOLUTION: An expansion joint 1 comprises: an expansion part 5 of a flexible material which is arranged over a joint part 3 of concrete structure 2, and has press parts 4 on both sides; a contact part 6 with a U-shaped cross section which is covered to the press parts 4 over a longitudinal direction; and a plurality of fixation units 10 for being pressed and fixed to the concrete structure 2 at an interval in the longitudinal direction of the contact part 6, in which the fixation unit 10 has: a short leg 11b folded downward located on the side of the joint part 3; and a long leg 11d folded downward located on the opposite side of the joint part 3, the long leg 11d has: a pressure part 11 which contacts the concrete structure 2 and is covered to the contact part 6; and an anchor bolt nut 14 for pressing the press part 4 to the concrete structure 2 via the pressure part 11, and the contact part 6 is located on the side of the joint part 3 to the anchor bolt nut 14. |
