An Analysis of Flexural Bond Length and Anchorage Length of Prestressed Fiber Reinforced Polymer Reinforcement
Abstract
The main aim of this paper is to provide a broader analysis of the flexural bond length and
anchorage length of different types of prestressed Fiber Reinforced Polymer (FRP) reinforcement and to provide
corrections to the existing theoretical models. Therefore, this paper presents a description of the main
parameters that influence the flexural bond length and anchorage length of different types of FRP reinforcement
based on experimental results found in the literature. The database of more than 70 specimens was compiled
with the results of the transfer length, flexural bond length, and anchorage length of FRP reinforcement and the
main influencing parameters. The analysis of a larger database of flexural bond length revealed that propositions
of coefficients αfb = 2.8 and αfb = 1.0 found in the literature for Carbon Fiber Composite Cable (CFCC) strands
and Carbon Fiber Reinforced Polymer (CFRP) bars, respectively, should be corrected. Therefore, corrected
values of coefficient αfb are proposed in this article for CFCC strands (αfb = 3.0) and CFRP bars (αfb = 0.9).
Additionally, the new value of αfb = 1.4 is proposed for flexural bond length of Aramid Fiber Reinforced
Polymer (AFRP) bars. Moreover, the main existing theoretical models are presented, and the comparison of
theoretical and experimental flexural bond length and anchorage length results is discussed. Additionally, the
analysis of the flexural bond length and anchorage length and the proposed new values of the coefficient αfb
provides possibilities for adapting it to design codes for engineering applications and performing additional
research that fills the missing gaps in the field.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 31, 2022 |
| Published in Issue | Year 2022Volume: 21 |
