Structural Behaviour of Clay Brick Lime Mortar Masonry Walls Under Lateral Cyclic Loading in Dry and Wet Conditions

A. Y. Elghazouli, D. V. Bompa, S. A. Mourad, A. Elyamani

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationProtection of Historical Constructions - Proceedings of PROHITECH 2021
EditorsIoannis Vayas, Federico M. Mazzolani
PublisherSpringer Science and Business Media Deutschland GmbH
Pages164-174
Number of pages11
ISBN (Print)9783030907877
DOIs
Publication statusPublished - Dec 2021
Event4th International Conference on Protection of Historical Constructions, PROHITECH 2021 - Athens, Greece
Duration: 25 Oct 202127 Oct 2021

Publication series

NameLecture Notes in Civil Engineering
Volume209 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference4th International Conference on Protection of Historical Constructions, PROHITECH 2021
Country/TerritoryGreece
CityAthens
Period25/10/2127/10/21

Keywords

  • Clay bricks
  • Cyclic loading
  • Diagonal tension
  • Lateral deformation
  • Lime mortar
  • Masonry walls
  • Wet conditions

ASJC Scopus subject areas

  • Civil and Structural Engineering

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