Imperial College London
Alternate

ProfessorAhmedElghazouli

Faculty of Engineering, Department of Civil and Environmental Engineering

Emeritus Professor of Structural Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6021a.elghazouli

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

440Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Elghazouli:2022:10.1016/j.jcsr.2022.107622,
author = {Elghazouli, AY and Mujdeci, A and Bompa, DV and Guo, YT},
doi = {10.1016/j.jcsr.2022.107622},
journal = {Journal of Constructional Steel Research},
pages = {1--17},
title = {Experimental cyclic response of rubberised concrete-filled steel tubes},
url = {http://dx.doi.org/10.1016/j.jcsr.2022.107622},
volume = {199},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper examines the behaviour of circular steel tubes infilled with concrete incorporating recycled rubber particles. The rubberised concrete-filled steel tubes are tested under lateral cyclic deformations with and without co-existing axial loading. A detailed account of the cyclic tests on twelve specimens is provided together with complementary material and section tests. The rubber replacement ratio is varied up to a relatively high value of 60%, under axial loads reaching up to 30% of the nominal capacity. Hollow steel members are also tested for comparison purposes. The experimental results are discussed in detail with respect to the member stiffness, capacity, ductility, energy dissipation and failure mechanisms. Although high rubber ratios lead to a considerable loss in concrete strength, the test results show that the corresponding reduction in member capacity is much less significant due to the contribution of the steel tube and the comparatively high confinement effects mobilised within the rubberised concrete. In comparison with the members incorporating normal concrete, the rubberised concrete members are found to exhibit up to about 10% and 17% increase in ductility and energy dissipation, respectively, depending on the rubber content. Analytical treatments are then used to suggest simplified relationships for predicting the stiffness, moment-axial strength interaction, plastic hinge length and local ductility criteria. Overall, the test results demonstrate the favourable inelastic cyclic performance of circular steel tubes infilled with rubberised concrete and provide valuable experimental data. The proposed expressions for key response parameters also offer the basis for developing practical assessment and design methods.
AU  - Elghazouli,AY
AU  - Mujdeci,A
AU  - Bompa,DV
AU  - Guo,YT
DO  - 10.1016/j.jcsr.2022.107622
EP  - 17
PY  - 2022///
SN  - 0143-974X
SP  - 1
TI  - Experimental cyclic response of rubberised concrete-filled steel tubes
T2  - Journal of Constructional Steel Research
UR  - http://dx.doi.org/10.1016/j.jcsr.2022.107622
UR  - https://www.sciencedirect.com/science/article/pii/S0143974X22004928?via%3Dihub
UR  - http://hdl.handle.net/10044/1/100314
VL  - 199
ER  -
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