碳纤维绞线黏结式锚具静力性能试验研究

Translated title of the contribution: Experimental study on static performance of bond-type anchorage for CFRP strand

Zhi Fang, Tingjia Yu, Yawei Fang, Yu Xiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

To develop an efficient anchoring method for CFRP (carbon fiber reinforced polymer/plastic) strands based on RPC (reactive powder concrete) grout, pull-out tests were conducted on CFRP strand specimens anchored using three methods, namely, bundled anchoring, decentralized anchoring and decentralized-merged anchoring. Test results show that the varying anchoring methods have a significant influence on the anchorage behavior. The decentralized and decentralized-merged anchoring methods exhibit an average anchoring efficiency 2.33 times that of the bundled anchoring method. Shear fracture occurs in separated spiral wires with open-angles larger than 5° for decentralized specimens or with arch-camber angle larger than 7° for decentralized-merged specimens. As for the decentralized and decentralized-merged anchoring methods, the proper open-angle and arch-camber angle are 3°-5° and 3°-7°, respectively. Equations for the average bond strength and the critical anchoring length for the three anchoring methods were proposed in this study, and the equations was validated via test results.

Translated title of the contributionExperimental study on static performance of bond-type anchorage for CFRP strand
Original languageChinese (Simplified)
Pages (from-to)167-174
Number of pages8
JournalJianzhu Jiegou Xuebao/Journal of Building Structures
Volume39
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018
Externally publishedYes

Keywords

  • Anchorage
  • Anchoring pattern
  • Bond strength
  • CFRP strand
  • Critical bond length
  • Pull-out test
  • RPC

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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