Experimental Analysis of Reinforced Concrete Block Masonry Walls Subjected to In-Plane Cyclic Loading
Publication: Journal of Structural Engineering
Volume 136, Issue 4
Abstract
An innovative system for reinforced concrete masonry walls based on the combination of vertical and horizontal trussed reinforcement is proposed. The mechanical characterization of the seismic behavior of such reinforced masonry walls is based on static cyclic tests carried out on panels with appropriate geometry. The influence of the factors influencing the in-plane cyclic behavior of concrete masonry walls, such as the horizontal reinforcement, precompression, and masonry bond pattern, is discussed. The results are analyzed in terms of failure modes and force versus displacement diagrams, from which the seismic performance is assessed based on the ductility and energy capacity dissipation. The results stressed that the increase on the precompression level leads to a stiffer and more brittle lateral behavior of the masonry walls. The presence of horizontal reinforcement ensures better control and better distribution of cracking, even if only a marginal increase of lateral strength was found in the particular testing program.
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Acknowledgments
This work was partly supported by contract DISWALL—“Development of innovative systems for reinforced masonry walls”—Grant No. UNSPECIFIEDCOOP-CT-2005–018120 from the European Commission. The first author was supported by the Programme , the European Union Programme of High Level Scholarships for Latin America, Scholarship No. UNSPECIFIEDE06D100148BR.UNSPECIFIED
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Published In
Journal of Structural Engineering
Volume 136 • Issue 4 • April 2010
Pages: 452 - 462
Copyright
© 2010 ASCE.
History
Received: Oct 27, 2008
Accepted: Aug 24, 2009
Published online: Oct 8, 2009
Published in print: Apr 2010
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