Bending and shear behaviour of waste rubber concrete-filled frp tubes with external flanges

Wahid Ferdous; Allan Manalo; Omar S. Alajarmeh; Yan Zhuge; Ali A. Mohammed; Yu Bai; Thiru Aravinthan; Peter Schubel

doi:10.3390/polym13152500

Bending and shear behaviour of waste rubber concrete-filled frp tubes with external flanges

Wahid Ferdous, Allan Manalo, Omar S. Alajarmeh, Yan Zhuge, Ali A. Mohammed, Yu Bai, Thiru Aravinthan, Peter Schubel

Civil & Environmental Engineering

Research output: Contribution to journal › Article › Research › peer-review

15 Citations (Scopus)

Abstract

An innovative beam concept made from hollow FRP tube with external flanges and filled with crumbed rubber concrete was investigated with respect to bending and shear. The performance of the rubberised-concrete-filled specimens was then compared with hollow and normal-concrete-filled tubes. A comparison between flanged and non-flanged hollow and concrete-filled tubes was also implemented. Moreover, finite element simulation was conducted to predict the fundamental behaviour of the beams. The results showed that concrete filling slightly improves bending performance but significantly enhances the shear properties of the beam. Adding 25% of crumb rubber in concrete marginally affects the bending and shear performance of the beam when compared with normal-concrete-filled tubes. Moreover, the stiffness-to-FRP weight ratio of a hollow externally flanged round tube is equivalent to that of a concrete-filled non-flanged round tube. The considera-tion of the pair-based contact surface between an FRP tube and infill concrete in linear finite element modelling predicted the failure loads within a 15% margin of difference.

Original language	English
Article number	2500
Number of pages	18
Journal	Polymers
Volume	13
Issue number	15
DOIs	https://doi.org/10.3390/polym13152500
Publication status	Published - 29 Jul 2021

Keywords

Bending and shear properties
Composite structures
Crumbed rubber concrete
Externally flanged-tube
Hollow and concrete-filled tubes
Waste tyres

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10.3390/polym13152500

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Cite this

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title = "Bending and shear behaviour of waste rubber concrete-filled frp tubes with external flanges",

abstract = "An innovative beam concept made from hollow FRP tube with external flanges and filled with crumbed rubber concrete was investigated with respect to bending and shear. The performance of the rubberised-concrete-filled specimens was then compared with hollow and normal-concrete-filled tubes. A comparison between flanged and non-flanged hollow and concrete-filled tubes was also implemented. Moreover, finite element simulation was conducted to predict the fundamental behaviour of the beams. The results showed that concrete filling slightly improves bending performance but significantly enhances the shear properties of the beam. Adding 25% of crumb rubber in concrete marginally affects the bending and shear performance of the beam when compared with normal-concrete-filled tubes. Moreover, the stiffness-to-FRP weight ratio of a hollow externally flanged round tube is equivalent to that of a concrete-filled non-flanged round tube. The considera-tion of the pair-based contact surface between an FRP tube and infill concrete in linear finite element modelling predicted the failure loads within a 15% margin of difference.",

keywords = "Bending and shear properties, Composite structures, Crumbed rubber concrete, Externally flanged-tube, Hollow and concrete-filled tubes, Waste tyres",

author = "Wahid Ferdous and Allan Manalo and Alajarmeh, {Omar S.} and Yan Zhuge and Mohammed, {Ali A.} and Yu Bai and Thiru Aravinthan and Peter Schubel",

note = "Funding Information: Acknowledgments: The authors thank Chip Tyre Pty. Ltd. for supplying crumb rubber and Composite Reinforcement Solutions in Perth for providing externally flanged hollow FRP tubes. The authors gratefully acknowledge the assistance from colleagues and technical staff during sample preparation and testing. The first author gratefully acknowledges financial support from the Capacity Building Grant (Project number-1007576) at the University of Southern Queensland. Funding Information: Funding: This research was funded through Cooperative Research Centres Projects, grant number [CRC-P57360-CRC-P Round 3] and the APC was waived by MDPI. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

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AU - Mohammed, Ali A.

AU - Bai, Yu

AU - Aravinthan, Thiru

AU - Schubel, Peter

N1 - Funding Information: Acknowledgments: The authors thank Chip Tyre Pty. Ltd. for supplying crumb rubber and Composite Reinforcement Solutions in Perth for providing externally flanged hollow FRP tubes. The authors gratefully acknowledge the assistance from colleagues and technical staff during sample preparation and testing. The first author gratefully acknowledges financial support from the Capacity Building Grant (Project number-1007576) at the University of Southern Queensland. Funding Information: Funding: This research was funded through Cooperative Research Centres Projects, grant number [CRC-P57360-CRC-P Round 3] and the APC was waived by MDPI. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/7/29

Y1 - 2021/7/29

N2 - An innovative beam concept made from hollow FRP tube with external flanges and filled with crumbed rubber concrete was investigated with respect to bending and shear. The performance of the rubberised-concrete-filled specimens was then compared with hollow and normal-concrete-filled tubes. A comparison between flanged and non-flanged hollow and concrete-filled tubes was also implemented. Moreover, finite element simulation was conducted to predict the fundamental behaviour of the beams. The results showed that concrete filling slightly improves bending performance but significantly enhances the shear properties of the beam. Adding 25% of crumb rubber in concrete marginally affects the bending and shear performance of the beam when compared with normal-concrete-filled tubes. Moreover, the stiffness-to-FRP weight ratio of a hollow externally flanged round tube is equivalent to that of a concrete-filled non-flanged round tube. The considera-tion of the pair-based contact surface between an FRP tube and infill concrete in linear finite element modelling predicted the failure loads within a 15% margin of difference.

AB - An innovative beam concept made from hollow FRP tube with external flanges and filled with crumbed rubber concrete was investigated with respect to bending and shear. The performance of the rubberised-concrete-filled specimens was then compared with hollow and normal-concrete-filled tubes. A comparison between flanged and non-flanged hollow and concrete-filled tubes was also implemented. Moreover, finite element simulation was conducted to predict the fundamental behaviour of the beams. The results showed that concrete filling slightly improves bending performance but significantly enhances the shear properties of the beam. Adding 25% of crumb rubber in concrete marginally affects the bending and shear performance of the beam when compared with normal-concrete-filled tubes. Moreover, the stiffness-to-FRP weight ratio of a hollow externally flanged round tube is equivalent to that of a concrete-filled non-flanged round tube. The considera-tion of the pair-based contact surface between an FRP tube and infill concrete in linear finite element modelling predicted the failure loads within a 15% margin of difference.

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Bending and shear behaviour of waste rubber concrete-filled frp tubes with external flanges

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Keywords

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