Hollow concrete columns: review of structural behavior and new designs using GFRP reinforcement

Alajarmeh, O. S. and Manalo, A. C. and Benmokrane, B. and Karunasena, K. and Ferdous, W. ORCID: https://orcid.org/0000-0002-4473-4722 and Mendis, P. (2020) Hollow concrete columns: review of structural behavior and new designs using GFRP reinforcement. Engineering Structures, 203 (Article 109829). ISSN 0141-0296

Text (Accepted Version) Accepted version.pdf Restricted - Available after 1 February 2021.

Abstract

Hollow concrete columns (HCCs) reinforced with steel bars have been employed extensively for bridge piers, ground piles, and utility poles because they use fewer materials and offer higher structural efficiency compared to solid concrete columns with the same concrete area. Many experimental studies have been conducted to investigate the behavior of HCCs under different loading conditions and found that the structural performance of HCCs is critically affected by many design parameters. If not designed properly, HCCs exhibit brittle failure behavior, due to longitudinal bars buckling or the concrete wall failing in shear. In addition, the corrosion of steel bars has become an issue in reinforced-concrete structures. Therefore, this paper critically reviews the different design parameters that affect the performance of HCCs and identifies new opportunities for the safe design and effective use of this construction system. Moreover, the use of GFRP bars as reinforcement in hollow concrete columns is explored with the aim of developing a non-corroding and structurally reliable construction system.

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Item Type:	Article (Commonwealth Reporting Category C)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	Accepted version embargoed until 1 February 2021 (12 months), in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre:	Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 July 2013 -)
Faculty/School / Institute/Centre:	Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited:	18 Dec 2019 01:53
Last Modified:	07 May 2020 22:55
Uncontrolled Keywords:	hollow concrete column; axial-load ratio; inner-to-outer diameter ratio; steel; GFRP; ductility; confined strength
Fields of Research :	09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials 09 Engineering > 0913 Mechanical Engineering > 091308 Solid Mechanics
Identification Number or DOI:	10.1016/j.engstruct.2019.109829
URI:	http://eprints.usq.edu.au/id/eprint/37530

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