@inproceedings{7d08a12f46064942957389763a7f8531,
title = "Structural Behaviour of Clay Brick Lime Mortar Masonry Walls Under Lateral Cyclic Loading in Dry and Wet Conditions",
abstract = "This paper examines the experimental structural response of clay brick lime mortar masonry walls in wet and ambient-dry conditions. The properties of fired-clay bricks and hydraulic lime-mortar materials are selected to resemble those of existing heritage masonry structures in Historic Cairo. The investigation includes tests on square panels under diagonal compression, and large-scale walls subjected to gravity loading and in-plane lateral cyclic displacements. In addition to the conditioning type, the effectiveness of strengthening with helical bars in horizontal bed joints is also investigated. Implications of embedding helical bars in lime mortar as well as the provision of end anchorages are assessed. The complete load-deformation response of the large-scale members is also evaluated, including the main behavioural characteristics and failure modes. The results show that moisture has a notable effect on the main mechanical properties and overall structural response of such masonry components. For the panels subjected to diagonal compression, the strength reduction under wet conditions is shown to be more than 40% compared to the dry counterparts. For the large-scale walls, subjected to combined lateral loading and precompression, this reduction is significantly lower but can exceed 10%. It is also shown that the provision of helical bars can, depending on their end anchorage and arrangement, double the diagonal tension strength of masonry and offset the adverse effects occurring due to moisture.",
keywords = "Clay bricks, Cyclic loading, Diagonal tension, Lateral deformation, Lime mortar, Masonry walls, Wet conditions",
author = "Elghazouli, {A. Y.} and Bompa, {D. V.} and Mourad, {S. A.} and A. Elyamani",
note = "Funding Information: Acknowledgements. The study was supported by the Arts and Humanities Research Council of the UK Research and Innovation agency, within the project “Interdisciplinary approach for the management and conservation of UNESCO World Heritage Site of Historic Cairo - Application to Al-Ashraf Street”, Grant No. AH/R00787X/1. The authors would like to acknowledge the support provided by the technical staff of the Structures Laboratories at Imperial College London, particularly Mr. P. Crudge, Mr. L. Clark, and Mr. T. Stickland. Funding Information: The study was supported by the Arts and Humanities Research Council of the UK Research and Innovation agency, within the project ?Interdisciplinary approach for the management and conservation of UNESCO World Heritage Site of Historic Cairo-Application to Al-Ashraf Street?, Grant No. AH/R00787X/1. The authors would like to acknowledge the support provided by the technical staff of the Structures Laboratories at Imperial College London, particularly Mr. P. Crudge, Mr. L. Clark, and Mr. T. Stickland. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.; 4th International Conference on Protection of Historical Constructions, PROHITECH 2021 ; Conference date: 25-10-2021 Through 27-10-2021",
year = "2021",
month = dec,
doi = "10.1007/978-3-030-90788-4_16",
language = "English",
isbn = "9783030907877",
series = "Lecture Notes in Civil Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "164--174",
editor = "Ioannis Vayas and Mazzolani, {Federico M.}",
booktitle = "Protection of Historical Constructions - Proceedings of PROHITECH 2021",
address = "Germany",
}