Effectiveness of Two Forms of Grouted Reinforced Confinement Methods to Hollow Concrete Masonry Panels
Publication: Journal of Materials in Civil Engineering
Volume 27, Issue 12
Abstract
This paper presents a study on the effectiveness of two forms of reinforced grout confining systems for hollow concrete block masonry. The systems considered are: (1) a layer of grout directly confining the unreinforced masonry, and (2) a layer of grout indirectly confining the unreinforced masonry through block shells. The study involves experimental testing and finite-element (FE) modeling of six diagonally loaded masonry panels containing the two confining systems. The failure mode, the ultimate load, and the load-deformation behaviors of the diagonally loaded panels were successfully simulated using the finite-element model. In-plane shear strength and stiffness of the masonry thus determined are used to evaluate some selected models of the confined masonry shear including the strut-and-tie model reported in the literature. The evaluated strut width is compared with the prediction of the FE model and then extended for rational prediction of the strength of confined masonry shear walls.
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Acknowledgments
The authors wish to acknowledge the donation of half-scale blocks for the experiment by Mr. David Stubbs, Director of the Canada Masonry Design Center. A QUT scholarship and fee waiver for the first author are also thankfully acknowledged.
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Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 12 • December 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 26, 2014
Accepted: Jan 28, 2015
Published online: Apr 3, 2015
Discussion open until: Sep 3, 2015
Published in print: Dec 1, 2015
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