Finite Element Study on the Shear Capacity of Traditional Joints between Walls Made of AAC Masonry Units.

Marcin Kozłowski,Radosław Jasiński,Iwona Galman

doi:10.3390/ma13184035

Marcin Kozłowski, Radosław Jasiński + Show 1 more

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https://doi.org/10.3390/ma13184035

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Journal: Materials	Publication Date: Sep 11, 2020
Citations: 5	License type: CC BY 4.0

Affiliation: Silesian University of Technology

Abstract

This paper presents the development of a numerical model aimed at the simulation of nonlinear behaviour of traditional joints between walls made of autoclaved aerated concrete (AAC) masonry units. Nonlinear behaviour and cracking of AAC and mortar were simulated using the concrete damaged plasticity (CDP) model available in the ABAQUS finite element software. The paper also presents and discusses the results of an experimental campaign involving testing six T-shaped, monosymmetric samples with traditional joints between walls loaded in shear. The results were used to validate the numerical model. The validation confirmed that the model is capable of producing accurate results and predicting the structural behaviour with a reasonably good accuracy in elastic and post-elastic stages. Furthermore, a sensitivity study was conducted, in which the variation of elastic modulus, Poisson’s ratio, tensile strength, compression strength and fracture energy of AAC was investigated. Results showed that the variation of elastic modulus, tensile strength and fracture energy is most critical to the structural behaviour of the model, while variation of the remaining parameters has a negligible effect on the results.

Highlights

The history of masonry structures is almost as long as the history of human civilization
2b) indicates indicates the the load load acting on the joint between
The finite element model was validated using the test results of an experimental campaign involving testing of six T-shaped, monosymmetric samples with traditional joints between walls loaded in shear

Summary

Introduction

The history of masonry structures is almost as long as the history of human civilization. The first traces of the oldest stone constructions were found in the Middle East and are dated to the period of. An example is a stone wall surrounding the terrace in front of a cave in El-Uad (Israel) [1]. Less than 2000 years later, first small-size ceramic elements were found and described in the literature. The bricks were not fired but only dried in the sun. In the middle of the third millennium

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