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{Li:2018:10.1016/j.firesaf.2018.06.003,
author = {Li, Z and Liu, Y and Huo, J and Chen, J and Elghazouli, AY},
doi = {10.1016/j.firesaf.2018.06.003},
journal = {Fire Safety Journal},
pages = {38--48},
title = {Experimental assessment of fire-exposed RC beam-column connections withvarying reinforcement development lengths subjected to column removal},
url = {http://dx.doi.org/10.1016/j.firesaf.2018.06.003},
volume = {99},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper describes an experimental investigation into the behaviour of RC beam-column connections under a column removal scenario induced by fire. A purpose-built hybrid heating furnace is employed to carry out the fire tests on five RC connections with varying reinforcement development lengths, with and without cooling effects. The thermal response of the RC connection specimens, including the temperature field and the axial force-furnace temperature curves, is firstly described. Subsequently, push-down tests are carried out on the beam-column connections, and the horizontal support reactions are closely monitored using a specially-designed sensor system. Based on the experimental results, the joint vertical load-displacement and bending moment-rotation relationships are presented, together with an account of the failure modes observed. The mechanical behaviour is discussed in detail, including the tying and rotation capacity provided by the connection specimens, with emphasis on the effect of the reinforcement development length as well as the heating regime. The experimental capacity interaction curves are also compared with the theoretical prediction for ambient condition, and employed to carry out a detailed examination of the underlying failure mechanisms. Finally, the findings are used to provide practical recommendations for enhancing the structural robustness of structural configurations of the form considered in this study.
AU  - Li,Z
AU  - Liu,Y
AU  - Huo,J
AU  - Chen,J
AU  - Elghazouli,AY
DO  - 10.1016/j.firesaf.2018.06.003
EP  - 48
PY  - 2018///
SN  - 0379-7112
SP  - 38
TI  - Experimental assessment of fire-exposed RC beam-column connections withvarying reinforcement development lengths subjected to column removal
T2  - Fire Safety Journal
UR  - http://dx.doi.org/10.1016/j.firesaf.2018.06.003
UR  - http://hdl.handle.net/10044/1/60924
VL  - 99
ER  -
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