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Shear Stiffness of Solid Clay Brick Wallets Sheared Perpendicularly to the Masonry Bed Joints.

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Bibliographic Details
Title: Shear Stiffness of Solid Clay Brick Wallets Sheared Perpendicularly to the Masonry Bed Joints.
Authors: Piekarczyk, Adam1 adam.piekarczyk@polsl.pl
Source: Procedia Engineering. 2016, Vol. 161, p1064-1069. 6p.
Subjects: Shearing force, Stiffness (Mechanics), Surface hardening, Strains & stresses (Mechanics), Compressive strength
Abstract: The article presents some results of experimental tests on solid clay brick masonry wallets ca. 130×140cm subjected to simultaneously shearing perpendicular to the bed joints and vertical compression. Angular distortions and shear stiffness were calculated based on measured strains of masonry and applied shear forces. The purpose of the study was to examine how the angular distortion depends on the shear stress and how the masonry shear stiffness changes with load increasing. The impact of the value of compressive stress perpendicular to the bed joints on shear stiffness was also tested. The results of investigations showed that relationship between the shear stresses and the angles of distortion were quite linear for shear stresses from 0 to τ cr ( τ cr – shear stress accompanying first diagonal cracking). The τ - θ relationship was nonlinear after diagonal cracking. Distinctive hardening (increase of shear stresses) of cracked masonry was evident for the specimens simultaneously sheared and compressed. The hardening was stronger when the specimens were strongly compressed. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The article presents some results of experimental tests on solid clay brick masonry wallets ca. 130×140cm subjected to simultaneously shearing perpendicular to the bed joints and vertical compression. Angular distortions and shear stiffness were calculated based on measured strains of masonry and applied shear forces. The purpose of the study was to examine how the angular distortion depends on the shear stress and how the masonry shear stiffness changes with load increasing. The impact of the value of compressive stress perpendicular to the bed joints on shear stiffness was also tested. The results of investigations showed that relationship between the shear stresses and the angles of distortion were quite linear for shear stresses from 0 to τ cr ( τ cr – shear stress accompanying first diagonal cracking). The τ - θ relationship was nonlinear after diagonal cracking. Distinctive hardening (increase of shear stresses) of cracked masonry was evident for the specimens simultaneously sheared and compressed. The hardening was stronger when the specimens were strongly compressed. [ABSTRACT FROM AUTHOR]
ISSN:18777058
DOI:10.1016/j.proeng.2016.08.849