| 摘要 |
PROBLEM TO BE SOLVED: To prevent the back and forth movement of a girder caused by an earthquake or the like by providing a laminated material formed by alternately laminating cloth bodies and elastic members in a direction orthogonal to a loading direction. SOLUTION: Cloth bodies are alternately laminated with elastic materials so as to form a laminated body. By this elastic body, a supporting material 9 is disposed between a girder 2 and the leg 1 of a girder falling preventing wall 6. The supporting material 9 is V-shaped in section and long, its leg part is fixed to the girder falling preventing wall 6 and its head part is brought into contact with the end surface of the installing part 3 of the girder 2. When a load is placed on the supporting material 9, in the limit deformation state of the leg part of the supporting material 9, an extreme state is quantified by the action of the tensile fracture of the cloth bodies laminated inside. Thus, compared with a supporting material made of single rubber, since the cloth bodies regulate the deformation of the elastic material in a shearing direction during initial application of a load, hard spring pressing is exerted in a direction orthogonal to a loading direction and a large energy absorbing amount is realized. |
