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Analytical model for CFRP strengthened circular RC column under elevated temperature


Muhammad Rashid, Raizal Saifulnaz and Aboutaha, Riyad S. (2014) Analytical model for CFRP strengthened circular RC column under elevated temperature. Computers and Concrete, 13 (4). pp. 517-529. ISSN 1598-8198; ESSN: 1598-818X


In order to increase the load carrying capacity and/or increase the service life of existing circular reinforced concrete bridge columns, Carbon Fiber Reinforced Polymer (CFRP) composites could be utilized. Transverse wrapping of circular concrete columns with CFRP sheets increases its axial and shear strengths. In addition, it provides good confinement to the concrete column core, which enhances the bending and compressive strength, as well as, ductility. Several experimental and analytical studies have been conducted on CFRP strengthened concrete cylinders/columns. However, there seem to be lack of thorough investigation of the effect of elevated temperatures on the response of CFRP strengthened circular concrete columns. A concrete confinement model that reflects the effects of elevated temperature on the mechanical properties of CFRP composites, and the efficiency of CFRP in strengthened concrete columns is presented. Tensile strength and modulus of CFRP under hot conditions and their effects on the concrete confinement are the primary parameters that were investigated. A modified concrete confinement model is developed and presented.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.12989/cac.2014.13.4.517
Publisher: Techno-Press
Keywords: CFRP; Circular concrete column; Confinement; Elevated temperature and humidity
Depositing User: Nabilah Mustapa
Date Deposited: 24 Jun 2015 02:39
Last Modified: 06 Oct 2015 03:45
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.12989/cac.2014.13.4.517
URI: http://psasir.upm.edu.my/id/eprint/36457
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