In-Plane Behavior of Partially Grouted Reinforced Concrete Masonry Shear Walls
Publication: Journal of Structural Engineering
Volume 136, Issue 9
Abstract
The objectives of this research were to experimentally establish the in-plane behavior of partially grouted (PG) reinforced concrete masonry shear walls and to assess the appropriateness of current seismic design provisions for such walls. To accomplish these, four PG special reinforced masonry shear walls (SRMSWs) were constructed based on the provisions of the Masonry Standards Joint Committee (MSJC) code and subjected to in-plane reversed cyclic displacements. The experimental test variables included mortar formulation, level of axial stress, and boundary conditions. The results of this study indicate that PG masonry shear walls respond similar to in-filled frames and provide little coupling between vertical reinforcing steels. Using these results along with those from past research, it is shown that the shear strength expression for reinforced masonry shear walls provided by MSJC (along with others) appears unconservative for PG masonry shear walls. In terms of displacement ductility, the results indicate that the response of PG SRMSW is consistent with the factors provided by the 2006 International Building Code due to the required capacity design and increased shear demand provisions of the MSJC.
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Acknowledgments
The research reported in this paper was conducted by Drexel University, with the sponsorship of the Portland Cement Association (PCA) (Project Index No. 03-12a). The contents of this paper reflect the views of the writers, who are responsible for the facts and accuracy of the data presented. The contents do not necessarily reflect the views of the PCA.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 136 • Issue 9 • September 2010
Pages: 1089 - 1097
Copyright
© 2010 ASCE.
History
Received: Jan 8, 2009
Accepted: Feb 4, 2010
Published online: Feb 8, 2010
Published in print: Sep 2010
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