For materials such as concrete, the understanding of the failure mode, deformability and strength of block masonry walls are important to simulate the behaviour of the assembly. Still now, there are difficulties on determine experimentally results of the interaction between the materials, as concrete block, mortar and the interface between vertical and bedding joint. Because of this, experimental tests of mason...
The aim of this work is to critically assess a stress-strain model using experimental masonry prisms constructed from different blocks and mortar. The following conclusion may be drawn from this work: mortar is mostly responsible for the non-linear behavior of masonry. The initial tangent modulus, obtained taking into account the compressive strength, provides a strongly non-linear relationship between elastici...
The main goal of this work is the understanding of triaxial compression capacity of bedding mortar. It was observed by the experimental tests that the behavior of the stress and strain response is highly nonlinear and depends on the increase of lateral stress. In all studies presented here, the ultimate strength envelope of triaxial mortar can be represented by a linear function with similar angular coefficient...
The main goal of this work is evaluate numerical model to reproduce the compression test of concrete block prisms, through a constitutive model of materials using the theory of plasticity and compare its results with experimental tests to preview the stress, strain and failure mode of the masonry. The post peak behavior of the material under tensile followed an exponential law and, under compression, a paraboli...
The main objective of this study is to verify, through compression tests on different prisms, the vertical and horizontal deformability and the failure modes of the components of concrete blocks under compression. In this study two mortar mixes were tested, according to the recommendations of BS-5628 1992, along with two types of prism, with and without the presence of a vertical joint. The conclusions were: th...
The main goal of this work is to investigate the nonlinear behavior of concrete block masonry prisms under compression, with an emphasis in the prism deformability and the failure modes. A total of 18 stack-bonded prisms have been tested, using hollow blocks of a single geometry and two different mortar types. To investigate the effect of vertical joints, the bond pattern – stack and running bond – in the prism...
Este trabalho pretende avaliar o comportamento mecânico das argamassas de assentamento para o uso estrutural, por meio das propriedades de resistência à compressão, tração na flexão e módulo de elasticidade, sob estados de tensões uniaxial e multiaxial. Portanto, estabelecer correlações entre os resultados mecânicos de diferentes traços de argamassas, relações água/cimento e geometria da amostra associada ao mo...
O objetivo principal deste trabalho é verificar, com os ensaios de compressão de diferentes prismas, as deformabilidades verticais, horizontais e os modos de rupturas dos componentes de blocos de concreto à compressão. No trabalho foram testados dois traços de argamassas, conforme o recomendado pela norma BS-5628, e dois tipos de prismas com e sem a presença da junta vertical.
Este trabalho tem por objetivo avaliar um modelo numérico para simular o ensaio de compressão em prismas de blocos de concreto, por meio de um modelo constitutivo usando a teoria de plasticidade e comparar com os resultados experimentais. Para os resultados numéricos de tensão e deformação axial e lateral dos prismas foram consideradas as não-linearidades do material e das interfaces entre os mesmos. A simulaçã...
O objetivo principal deste trabalho é verificar, com os ensaios de compressão de diferentes prismas, as deformabilidades verticais, horizontais e os modos de rupturas dos componentes de blocos de concreto à compressão. No trabalho foram testados dois traços de argamassas, conforme o recomendado pela BS-5628 [1], e dois tipos de prismas com e sem a presença da junta vertical. As conclusões obtidas foram: o surgi...
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