Evaluation of FRP Bond Specifications for Development Lengths

Abstract

This paper presents an analytical study performed on concrete girders reinforced with FRP bars with the goal of evaluating current ACI-440 design equations for bond development length. The analytical model is based on finite element formulation of anchored bar problems with inelastic constitutive laws for the corresponding materials. The bond stress-slip behavior between FRP bars and concrete was calibrated from experimental data obtained from a large database set of over 50 test specimens available in the literature. A large number of analytical simulations were conducted in order to investigate the effect of different parameters on the development length. These parameters include: bar type (GFRP, CFRP), bar strength, bar modulus of elasticity, bar diameter, surface coatings, concrete strength, and confinement. The analytical study concluded by proposing a new equation for development length that accounts for the effect of these parameters.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Bond; Development Length; FRP

International Standard Book Number (ISBN)

978-061513586-1

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Composites of Civil Engineering, All rights reserved.

Publication Date

01 Jan 2020

This document is currently not available here.

Share

 
COinS