Shear behaviour of hollow precast concrete-composite structures

Al-Fakher, Usama and Manalo, Allan ORCID: https://orcid.org/0000-0003-0493-433X and Ferdous, Wahid ORCID: https://orcid.org/0000-0002-4473-4722 and Alajarmeh, Omar ORCID: https://orcid.org/0000-0002-9446-5436 and Aravinthan, Thiru ORCID: https://orcid.org/0000-0003-0691-8296 and Zhuge, Yan and Bai, Yu and Edoo, Azam (2021) Shear behaviour of hollow precast concrete-composite structures. Materials and Structures, 54 (2):84. pp. 1-18. ISSN 1359-5997


Abstract

Hollow core concrete-panels are prone to shear failure due to collapse of the voids. In this study, the shear behaviour of hollow precast concretecomposite structures (HPCCSs) reinforced with steel bars and composite reinforcing system (CRS) were investigated. Eleven concrete-panels with different unit-widths (175 mm, 200 mm and 300 mm) and shear-spans (300 mm, 600 mm and 900 mm) were fabricated and tested under static-bending to investigate the effect of CRSspacingandspan-to-depth(a=d) ratio, respectively on the shear behaviour of the HPCCSs. It was found that the CRS enhanced the structural performance of HPCCSs by changing the shear crack path. The narrower CRS spacing provided better interaction between the CRS and the concrete as the flanges interlock better with most of the . surrounding concrete, and exhibited higher normalised shear strength than the wider spacing panels. The contribution of CRS in shear was constant but increased in bending with the increase of a=d ratio. The finite-element-analysis confirmed that the CRS contributed highly in resisting the shear of the HPCCSs. Finally, empirical model was developed to predict shear load-capacity by considering the contribution of the CRS and a=d ratio of this new type of HPCCSs.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 25 Jan 2022 03:44
Last Modified: 18 Mar 2022 12:51
Uncontrolled Keywords: Composite reinforcing system; Empirical modelling; FEM modelling; Hollow concrete panels; Shear behaviour
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.1617/s11527-021-01618-9
URI: http://eprints.usq.edu.au/id/eprint/45706

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