Analysis of axially loaded columns strengthened with fibre-reinforced polymer-Reference-Cited by-同舟云学术

Analysis of axially loaded columns strengthened with fibre-reinforced polymer

Published:2022-01-24 Issue: Volume: Page:1-23
ISSN:0965-0911
Container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings

Author:

Isleem Haytham F.¹^ORCID,Abid Muhammad²,Zeb Shayan³,Jize Mao⁴

Affiliation:

1. Postdoctoral Researcher, Department of Civil Engineering, Tsinghua University, Beijing, China (corresponding author: )

2. Assistant Professor, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China

3. Master's Degree Student, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China

4. Professor, College of College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China

Abstract

When estimating the rectangular stress block of a reinforced concrete flexural member, it is important to take into account different behaviours due to load eccentricity, the ratio and type of fibre-reinforced polymer strengthening, specimen height and confinement ratio. To investigate the impact of these key variables on a rectangular stress block, an extensive analysis of an experimental database of 84 specimens reported by several independent research groups was undertaken. The accuracy and conservativeness of several models under axial compression and flexural loading were first assessed. Comparisons revealed overestimations for specimens strengthened with carbon-fibre-reinforced polymer and underestimations for those reinforced with glass-fibre-reinforced polymer. Inaccurate predictions were also obtained even after more accurate models of concentrically loaded tests were analysed using existing concrete design codes. Expressions for columns strengthened with fibre-reinforced polymer under pure axial compression and modifications for the coefficients of the rectangular stress block were developed. The results indicate a good and safe correlation of predicted strength values.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jstbu.20.00290

Reference93 articles.

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4. ACI (2014) ACI 318-14: Building code requirements for structural concrete and commentary. ACI, Farmington Hills, MI, USA.

5. ACI (2015) ACI 440.1 R-15: Design and construction of structural concrete reinforced with fibre-reinforced polymer (FRP) bars. ACI, Farmington Hills, MI, USA.

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