| 摘要 |
PURPOSE: A cable tensioner is provided to easily compensate weakened pretension and post-tension of concrete, caused by the reduced tension of cables. CONSTITUTION: A cable tensioner comprises a housing(10) and a piston(20). The housing comprises an operating space inside and an inlet(17) in which hydraulic fluid is selectively injected. The piston is moved in and out of the operating space as the hydraulic fluid is injected through the inlet. The piston comprises a cable fixed to an end of the piston, which protrudes out of the operating space, and a fixing nut(50) which is formed to move along the outer periphery of the piston. |
