THE STATIC TEST OF THE COMPOSITE ANCHOR FOR CFRP TENDONS AND THE ANALYSIS OF THE BOND STRESS DISTRIBUTION

COMPOSITES SCIENCE AND ENGINEERING ›› 2015, Vol. 0 ›› Issue (11): 5-8.

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THE STATIC TEST OF THE COMPOSITE ANCHOR FOR CFRP TENDONS AND THE ANALYSIS OF THE BOND STRESS DISTRIBUTION

CHEN Bei^1,2, LI Shi-quan^1*, LIU Rong-gui², XIE Gui-hua²

1. Faculty of Civil Engineering of Taizhou Institute of Technology, Nanjing University of Science and Technology, Taizhou 225300, China;
2. Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China

Received:2015-05-28 Online:2015-11-28 Published:2021-09-14

Abstract

Abstract: The tests of parallel composite anchors for CFRP tendons are carried out. The wedge-bond anchorage with reasonable parameters can anchor 8mm-diameter CFRP tendons effectively. By strain test of steel pipes, the distribution of the bond stress of reinforcement is obtained. This method is simple and reliable, especially for the type of anchor. In the ultimate state, the stress distribution of M-7 is consistent with BBA model. While the stress distribution of M-1, M-2, M-3 is not consistent with BBA model, and is mainly reflected in the loading end. The bond stress is significantly higher than the residual bond stress of BBA model. The results showed that the anchoring performance and bond stress are influenced by gripping position, bonding materials, the length of steel pipe and clip. The results provide a basis for the design of large-tonnage anchor structures of the same type.

Key words: CFRP tendons, wedge-bond anchorage, bond stress distribution, test method

CLC Number:

TB332

CHEN Bei, LI Shi-quan, LIU Rong-gui, XIE Gui-hua. THE STATIC TEST OF THE COMPOSITE ANCHOR FOR CFRP TENDONS AND THE ANALYSIS OF THE BOND STRESS DISTRIBUTION[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(11): 5-8.

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THE STATIC TEST OF THE COMPOSITE ANCHOR FOR CFRP TENDONS AND THE ANALYSIS OF THE BOND STRESS DISTRIBUTION

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