Bending behaviour of precast concrete slab with externally flanged hollow FRP tubes
Article
Article Title | Bending behaviour of precast concrete slab with externally flanged hollow FRP tubes |
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ERA Journal ID | 4188 |
Article Category | Article |
Authors | Al-Fakher, Usama (Author), Manalo, Allan (Author), Ferdous, Wahid (Author), Aravinthan, Thiru (Author), Zhuge, Yan (Author), Bai, Yu (Author) and Edoo, Azam (Author) |
Journal Title | Engineering Structures |
Journal Citation | 241, pp. 1-10 |
Article Number | 112433 |
Number of Pages | 10 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0141-0296 |
1873-7323 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.engstruct.2021.112433 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0141029621005836 |
Abstract | Hollow-core precast concrete slabs are now being used in modular building construction to minimise the volume of concrete and to reduce their weight. However, the existence of voids in hollow-core concrete slabs makes the slab prone to premature failure. Recently, a composite reinforcing systems (CRS) has been developed to support the void in precast slabs. In this paper, the bending behaviour of a composite slab made from precast concrete with steel and CRS reinforcement was investigated. Four-point bending test was conducted for six precast slabs (solid, hollow without CRS, hollow with 2, 3 and 4 CRS, and hollow with 3 epoxy coated CRS) to comprehend the structural performance of this new precast concrete construction system. A non-linear finite element modelling was also conducted to gain an insight understanding the behaviour of the internal components of slab. The results showed that the CRS can stabilise the hollow core and act as additional reinforcement which enhances the load bearing capacity by 112% and the initial stiffness of the slabs by 24%. |
Keywords | Bending behaviour; Externally flanged FRP tubes; Finite element modelling; Hollow-core precast concrete slabs |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Byline Affiliations | Centre for Future Materials |
University of South Australia | |
Monash University | |
Composite Reinforcing Solutions, Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6yv5/bending-behaviour-of-precast-concrete-slab-with-externally-flanged-hollow-frp-tubes
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