PRETENSION TENDON, MANUFACTURING METHOD OF PRETENSION TENDON, CONSTRUCTION METHOD USING PRETENSION TENDON, AND METHOD FOR INTRODUCING PRETENSION INTO CONCRETE

摘要

PROBLEM TO BE SOLVED: To provide a pretension tendon capable of easily ensuring a pretension with a shortest fixing length required for the pretension tendon when any anchorage device is not used by using a pretension tendon of a high strength reinforcing bar (SD: 390 or more).SOLUTION: Disclosed pretension tendon S has at least one protruding bump 11 which is formed with the same material as the base material 10. The size of the tendon is 1.5 times or more in diameter of the base material 10 on the base material 10, at both end area of bar of a base material 10 (high strength reinforcing bar) to be tensioned.SELECTED DRAWING: Figure 1