An Experimental Study on Improving Anchor Performance for CFRP Tendons

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: An Experimental Study on Improving Anchor Performance for CFRP Tendons

Author(s): W. T. Jung, Y. H. Park, and J. S. Park

Publication: Special Publication

Volume: 275

Issue:

Appears on pages(s): 1-16

Keywords: carbon fiber reinforced polymer; compression-type anchor, strengthening; taper; tendons; reinforcements

Date: 3/1/2011

Abstract:
The application of the conventional anchoring system used for steel wires is likely to reduce the efficiency of the CFRP tendon. Therefore, need is to develop anchor appropriate to CFRP tendon. This study selected the compression-type anchor among the three types of anchor. Tapered section was adopted for the external diameter of the sleeve to alleviate the concentration of stress occurring under compression, and the performance of the anchor was observed with respect to the length of the taper. The experimental results showed that the performance of anchors is sensitive to dimensions of the sleeve and the compression force. The sleeve presenting stress softening section was seen to reduce the concentration of stress. The finite element analysis and experimental results enabled to derive dimensions of the sleeve improving the efficiency of CFRP tendon, and dimensions of the sleeve enhancing the anchor performance of CFRP tendons with different diameters are proposed.