Tension cable retension structure and method

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PURPOSE : A re-tensioning structure of a tension cable which maintains the tension of a tensioned cable by re-tensioning a cable in a regular interval is provided to compensate the reduction of tensile force of the tensioned cable by creeping. CONSTITUTION : A re-tensioning structure of a tension cable comprises an anchor plate(10), an anchor head(20), a tensioned cable(30), a hydraulic cylinder, a connecting member(50), a fixing ring(60) and a supporting member(70). The anchor head is installed on the anchor plate. When the tensioned cable is tensioned through the anchor plate and the anchor head, the tensioned cable adheres closely to the wedge to the anchor head. The supporting member is inserted between the bodies of the hydraulic cylinder and the anchor plate.