Compression Behavior and Failure Mechanisms of Concrete Masonry Prisms
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 1
Abstract
To date, only linear elastic analyses have been used to explain the compression behavior of the concrete masonry prisms. In this study, nonlinear three-dimensional finite element analyses, based on both an elastoplastic approach and an isotropic damage model, have been applied to the compression behavior of hollow block and grouted concrete block prisms. Attention is particularly focused on the derivation of material parameters for concrete, grout, and mortar, and also on the improvement of existing code expressions for prism strength. This paper introduces adequate values for the cohesion and friction angle of the Drucker–Prager yield criterion and material damage parameters for the damage model for the constituent materials. The results of the nonlinear finite element analyses have been observed to be in good agreement with the experimental data in terms of failure mechanisms and ultimate load. Failure modes of grouted prisms are also investigated by evaluating the stress distributions at the outer face shell along the prism height. Finally, an analytical relation is proposed to predict the compressive strength of concrete masonry prisms, .
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Acknowledgment
The writers acknowledge the financial support of the Research Fund Directorate of Yildiz Technical Univ. within the project of “Experimental Study of Structural Masonry Elements for Damage Analysis of Hollow-Block and Brick and Evaluation of Test Results by Finite Element Method” (No. 22-05-01-01), the material supply of Yapi Merkezi, Prefabrication A.Ş, and Mr. Paul Lyons who provided the research copy of LUSAS for use.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 1 • February 2005
Pages: 107 - 115
Copyright
© ASCE.
History
Received: Jan 29, 2003
Accepted: May 17, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
Notes
Note. Associate Editor: David Trejo
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