Shake-Table Tests of a Full-Scale Three-Story Reinforced Masonry Shear Wall Structure
Publication: Journal of Structural Engineering
Volume 142, Issue 10
Abstract
This paper presents the shake-table tests of a full-scale, 3-story, reinforced concrete masonry structure. The structure was a special reinforced masonry shear wall system designed according to current code provisions for an area of high seismicity. It consisted of three lines of walls arranged in an H-shape in plan view, with one lineal and two T-walls aligned in the direction of the table motion and four lineal walls oriented perpendicular to the table motion. The seven walls were separated by door openings and were connected with lintels and precast slabs with cast-in-place concrete topping. The structure was subjected to a series of dynamic tests including nine seismic excitations with intensities exceeding the maximum considered earthquake used in the design. The structure had a capacity that exceeded considerably the design base shear, and it withstood all but the last two excitations with little or no damage. The paper presents the design of the test structure, its dynamic response to the seismic excitations, the evolution of damage, and the major observations and findings from the tests, including the influence of the concrete slabs, lintels, location of lap splices, and walls oriented perpendicular to the direction of the table motion on the structural performance.
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Acknowledgments
This study was supported by a NIST ARRA Measurement Science and Engineering Grant awarded to the University of California at San Diego under Award No. 60NANB10D013. The shake-table tests were conducted with the support of the Network for Earthquake Engineering Simulation Program of NSF. The third author would also like to acknowledge a Graduate Fellowship from UC, San Diego, which partially supported his graduate studies. The technical assistance and support of the staff at the Englekirk Structural Engineering Center of UC, San Diego in the shake-table tests is greatly appreciated. Finally, the authors would like to thank Dr. Matthew Schoettler for his assistance in post-processing the test data. The opinions expressed in this paper are those of the authors and do not necessarily represent those of the sponsors.
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Information
Published In
Journal of Structural Engineering
Volume 142 • Issue 10 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jan 23, 2015
Accepted: Feb 2, 2016
Published online: Apr 28, 2016
Discussion open until: Sep 28, 2016
Published in print: Oct 1, 2016
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