| 摘要 |
A post tension cylinder for tensioning a cable of pre-stressed fabric is provided to reduce a consumed amount of the cable and to release a lock state of a tensile wedge of a cable support mechanism simply. A post tension cylinder for tensioning a cable of pre-stressed fabric includes a cylinder case(9), a cylinder chamber(13), an annular piston rod, a cylinder case(17), a cylinder chamber(21), and a piston rod. The cylinder case is composed of dual walls(11a). The cylinder chamber is formed between the dual layers. The piston rod is inserted into the cylinder chamber. An elastic spring is installed between the piston rod and the cylinder case. |
