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Open AccessArticle

Research on the Influence of Bed Joint Reinforcement on Strength and Deformability of Masonry Shear Walls

Department of Building Structures, Silesian University of Technology, ul. Akademicka 5, 44-100 Gliwice, Poland
Materials 2019, 12(16), 2543; https://doi.org/10.3390/ma12162543
Received: 12 July 2019 / Revised: 4 August 2019 / Accepted: 7 August 2019 / Published: 9 August 2019
(This article belongs to the Special Issue Reinforcement and Repair Materials for Masonry Structures)
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Abstract

The areas of Central and Eastern Europe and, thus, Poland are not exposed to the effects of seismic actions. Any possible tremors can be caused by coal or copper mining. Wind, rheological effects, the impact of other objects, or a nonuniform substrate are the predominant types of loading included in the calculations for stiffening walls. The majority of buildings in Poland, as in most other European countries, are low, medium-high brick buildings. Some traditional materials, like solid brick (>10% of construction materials market) are still used, but autoclaved aerated concrete (AAC) and cement-sand calcium-silicate (Ca-Si) elements with thin joints are prevailing (>70% of the market) on the Polish market. Adding reinforcement only to bed joints in a wall is a satisfactory solution (in addition to confining) for seismic actions occurring in Poland that improves ULS (ultimate limit state) and SLS (serviceability limit state). This paper presents results from our own tests on testing horizontal shear walls without reinforcement and with different types of reinforcement. This discussion includes 51 walls made of solid brick (CB) reinforced with steel bars and steel trusses and results from tests on 15 walls made of calcium-silicate (Ca-Si) and AAC masonry units reinforced with steel trusses and plastic meshes. Taking into account our own tests and those conducted by other authors, empirical relationships were determined on the basis of more than 90 walls. They are applicable to the design and construction phases to determine the likely effect of reinforcements on cracking stress that damage shear deformation and wall stiffness. View Full-Text
Keywords: masonry structures; shear walls; Clay Brick (CB); calcium-silicate (Ca-Si) masonry units; Autoclaved Aerated Concrete (AAC) masonry units; bed joint reinforcement; shear strength; strain angle; wall stiffness masonry structures; shear walls; Clay Brick (CB); calcium-silicate (Ca-Si) masonry units; Autoclaved Aerated Concrete (AAC) masonry units; bed joint reinforcement; shear strength; strain angle; wall stiffness
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Jasiński, R. Research on the Influence of Bed Joint Reinforcement on Strength and Deformability of Masonry Shear Walls. Materials 2019, 12, 2543.

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