Abstract:

As prestressing tendons, the stress relaxation property of FRP tendons must be studied. To survey it, the key is to find an effective method anchoring the specimen’s ends. The usual FRP tendon anchor systems are not fit to measure the stress relaxation property. Therefore，an innovation anchor method has been put forward in this paper. Applied the anchor system，the slip of the specimen’s ends is nearly zero so that the strain of the test section can be maintained constant during the test and the measure results should be accurate.

Key words: FRP tendon, stress relaxation, specimen, anchor method