Experimental Cyclic Testing of URM Pier-Spandrel Substructures
Publication: Journal of Structural Engineering
Volume 143, Issue 2
Abstract
Most current assessment methods for determining the capacity of perforated unreinforced masonry (URM walls) loaded in-plane are based on the assumption of infinitely rigid spandrel elements. Based on observations of damage following past earthquakes, this assumption has been proven to be invalid for certain perforated wall geometries. The reported study was conducted with the primary aim of investigating global and local response of perforated URM walls, with an emphasis placed on defining the influence of the spandrel geometry on the system level response of perforated URM walls responding in-plane. Pseudostatic cyclic testing of six replicated URM full-scale pier-spandrel substructures was conducted to investigate the variables that control spandrel failure modes and the influence of spandrel failure on the lateral capacity of multistory URM walls. Testing showed that the behavior of the spandrel has a significant effect on the failure mode of the piers and hence the strength, stiffness, and energy-dissipation capacity of the system.
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Published In
Journal of Structural Engineering
Volume 143 • Issue 2 • February 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Nov 25, 2015
Accepted: Jul 15, 2016
Published online: Sep 22, 2016
Published in print: Feb 1, 2017
Discussion open until: Feb 22, 2017
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