| 摘要 |
PROBLEM TO BE SOLVED: To secure safety to axial force of acting on a short strut with a sure hinge structure, to secure durability even in a salt damage environment without slipping out the short strut when an earthquake occurs, and to reduce construction cost by shortening a construction period by facilitating construction.SOLUTION: A hinge structure 10 is composed of a sheath pipe 200 installed in both end parts of a steel pipe short strut 100 and a hinge part 300 inserted into the sheath pipe 200. The sheath pipe 200 comprises a support part 211 for swingably supporting the hinge part 300 to the sheath pipe 200, and the hinge part 300 comprises a substantially semispherical abutting member 310 of projecting toward an end part of the sheath pipe 200. The sheath pipe 200 and the hinge part 300 are also provided with a sheath pipe side slipping-out preventive part 220 and a hinge part side slipping-out preventive part 320 for respectively preventing slipping-out of the hinge part 300. |
