Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 52, Issue -, Pages 122-129Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.11.020
Keywords
Unreinforced masonry walls; Vertical steel ties; Seismic retrofit; Cyclic lateral load
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In this paper, a technique for seismic retrofit of unreinforced masonry walls is studied which comprises addition of two vertical steel ties on both edges of the walls. In total, four specimens have been tested under cyclic lateral load in combination with vertical constant load: two specimens with ties and two without ties. The tests show that vertical ties cause significant increase in seismic capacity in terms of both strength and ductility not only at yield but also at maximum. The ties also cause the failure modes to transform from either shear slip or diagonal tension into a combination of diagonal tension and toe-crushing. (C) 2013 Elsevier Ltd. All rights reserved.
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