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{Bompa:2019:10.1016/j.engstruct.2018.11.053,
author = {Bompa, DV and Elghazouli, AY},
doi = {10.1016/j.engstruct.2018.11.053},
journal = {Engineering Structures},
pages = {468--483},
title = {Inelastic cyclic behaviour of RC members incorporating threaded reinforcement couplers},
url = {http://dx.doi.org/10.1016/j.engstruct.2018.11.053},
volume = {180},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper describes an experimental investigation into the inelastic cyclic performance of reinforced concrete members incorporating mechanical reinforcement splices. Based on a survey of available mechanical splicing forms, two types of threaded couplers with different geometric configurations, namely ‘parallel threaded couplers’ and ‘parallel threaded sleeve couplers’ are selected for detailed experimental assessment. The fundamental uniaxial monotonic and cyclic response of reinforcement bars connected with threaded mechanical splices is firstly examined through bare (in-air) and embedded (in-concrete) tests, and their response is compared with that of their non-spliced counterparts. This is followed by an experimental study on four large scale reinforced concrete specimens subjected to lateral inelastic cyclic displacements, which provides a direct comparison between the performance of members with or without the two types of reinforcement couplers as well with or without a co-existing axial load. The test results enable a direct comparative assessment of the key response characteristics of the specimens including stiffness, strength, ductility and energy dissipation. Overall, the results show that members incorporating reinforcement bars connected through threaded mechanical couplers can provide considerable ductility and energy dissipation. However, the coupler-concrete interaction behaviour, which depends primarily on the geometry and location of the threaded coupler, has a significant influence on the inelastic cyclic response and ductility levels exhibited by reinforced concrete members. The experimental results indicate that the presence of the slender coupler alters the plastic hinge behaviour by localising the curvatures between the coupler and interface, reducing the rotational capacity. In contrast, the response of members with compact couplers, and without axial load, is virtually identical to that of the specimen with continu
AU  - Bompa,DV
AU  - Elghazouli,AY
DO  - 10.1016/j.engstruct.2018.11.053
EP  - 483
PY  - 2019///
SN  - 0141-0296
SP  - 468
TI  - Inelastic cyclic behaviour of RC members incorporating threaded reinforcement couplers
T2  - Engineering Structures
UR  - http://dx.doi.org/10.1016/j.engstruct.2018.11.053
UR  - http://hdl.handle.net/10044/1/64735
VL  - 180
ER  -
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