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:2020:10.1016/j.conbuildmat.2020.120571,
author = {Bompa, DV and Elghazouli, AY},
doi = {10.1016/j.conbuildmat.2020.120571},
journal = {Construction and Building Materials},
pages = {1--17},
title = {Experimental and numerical assessment of the shear behaviour of lime mortar clay brick masonry triplets},
url = {http://dx.doi.org/10.1016/j.conbuildmat.2020.120571},
volume = {262},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This study investigates the fundamental shear response of masonry triplets incorporating fired-clay bricks and hydraulic lime mortars. It examines the behaviour under ambient-dry and wet conditions, corresponding to 48 h submersion in water, as well as the effectiveness of strengthening with fibre reinforced polymer (FRP) laminates and glass fibre meshes (GFM). After describing the materials, mix designs and specimen details, the main results from 50 triplet tests subjected to shear and normal pre-compression are presented. Digital image correlation measurement techniques, which are employed in order to obtain a detailed insight into the shear behaviour, enable clear identification and quantification of the main failure modes and response characteristics of the brick-mortar interfaces. The results show that the shear strength of wet triplets was about 20% lower on average than of those in dry conditions. Specimens provided with FRP sheets offered a higher strength enhancement than those with GFM. The strength increase using FRP was in the range of 16.6%–185.8% compared with the non-strengthened dry counterpart, depending on the laminate layout and normal stress level. In contrast, the strength increase using GFM, in conjunction with a mortar overlay, was typically less than 10% compared with the non-strengthened dry counterpart. A significantly higher strength contribution from both FRP and GFM was obtained for elements without pre-compression. Although the strength enhancement using GFM was generally modest, such strengthening is activated gradually leading to a relatively ductile interfacial behaviour in comparison with FRP. In order to provide further insights into the behaviour, complementary nonlinear numerical simulations are undertaken, using the key parameters obtained from the tests. The numerical models employ detailed surface-based cohesive-contact approaches, with due account for inelastic damage at the masonry interfaces, and damage-plasticity mod
AU  - Bompa,DV
AU  - Elghazouli,AY
DO  - 10.1016/j.conbuildmat.2020.120571
EP  - 17
PY  - 2020///
SN  - 0950-0618
SP  - 1
TI  - Experimental and numerical assessment of the shear behaviour of lime mortar clay brick masonry triplets
T2  - Construction and Building Materials
UR  - http://dx.doi.org/10.1016/j.conbuildmat.2020.120571
UR  - https://www.sciencedirect.com/science/article/pii/S0950061820325769?via%3Dihub
UR  - http://hdl.handle.net/10044/1/82566
VL  - 262
ER  -
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