| 摘要 |
PURPOSE: A jig used for performing a tensile test of a high-tension bolt is provided to improve reliability of a tensile test result by stably supporting the high-tension bolt while performing the tensile test of the high-tension bolt. CONSTITUTION: A jig includes an upper wedge jig(20H) and a lower wedge jig(20L). Upper and lower tension jigs(3H,3L) are provided to surround the upper and lower wedge jigs(20H,20L), respectively. The upper wedge jig(20H) has a plate shape. A supporting section(21) is integrally formed with a lower center portion of the upper wedge jig(20H). An upper surface of the upper wedge jig(20H) is inclined. A perforation hole(27) is formed at a central portion of the supporting section(21). A lower wedge jig(20L) has a plate shape and is formed at an upper surface thereof with a cylindrical supporting section. A female screw hole(28) is formed at a center portion of the cylindrical supporting section.
|
