Suitability of Half-Scale Burnt Clay Bricks for Shake Table Tests on Masonry Walls
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 4
Abstract
Experimental small-scale modeling of clay brick masonry for behavior up to failure under earthquake-type loads poses many challenges, such as manufacturing of small-scale bricks and creating masonry that not only meets necessary similitude laws but also accommodates the requirement of artificial mass for shake-table tests. In addition, the stress and modulus ratios should be unity for model and prototype masonry in all loading conditions. The suitability of the half-scale bricks, produced in the same manner as the prototype, was studied through several material tests on brick units and masonry assemblages. Tests for compressive strength, water absorption, and initial rate of absorption were conducted on brick units. Axial compression, shear, tension bond, flexure, and diagonal compression tests were performed on brick masonry assemblages. A reasonable agreement in strength and stiffness properties of model and prototype masonry was observed, despite the difference in compressive strengths of model and prototype brick units. These results validate the suitability of half-scale bricks to predict the behavior of prototype masonry assemblages up to failure under various loading conditions.
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Acknowledgments
The writers gratefully acknowledge the financial support from the Ministry of Human Resources and Development, government of India, through a research grant to the Indian Institute of Technology (IIT), Kanpur. The writers sincerely appreciate the assistance received by former graduate student S. Komaraneni and the staff of the structural engineering laboratory at IIT, Kanpur.
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Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 4 • April 2014
Pages: 644 - 657
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Aug 29, 2012
Accepted: May 23, 2013
Published online: May 25, 2013
Discussion open until: Oct 25, 2013
Published in print: Apr 1, 2014
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