Mitigation of Seismic Vulnerability of Prototype Low-Rise Masonry Building Using U-FREIs
Publication: Journal of Performance of Constructed Facilities
Volume 32, Issue 2
Abstract
Seismic vulnerability of a two-story stone masonry building supported on U-FREIs (unbonded fiber-reinforced elastomeric isolators) is evaluated. The prototype building is located in Tawang, India, and is the first such U-FREI-supported prototype masonry building constructed anywhere in the world. The base-isolated (BI) building is numerically simulated by three-dimensional nonlinear finite elements (FEs). Experimentally obtained mechanical characteristics of U-FREIs are used in defining the nonlinear properties of the model used for simulating U-FREIs. Reduction in seismic vulnerability of the BI building as compared to that of a fixed-base (FB) building is evaluated using analytical fragility curves. Significant reduction in probability of exceedance of all the considered damage states of BI buildings is observed as compared to that of FB buildings.
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Acknowledgments
These authors would like to acknowledge the contribution of METCO Pvt. Ltd., Kolkata, India, for manufacturing FREI; the staff of Structural Engineering Laboratory, IIT Guwahati, India, for their help during experimental investigation; and APWD, Arunachal Pradesh, India, for providing financial support for the construction of the BI building.
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Published In
Journal of Performance of Constructed Facilities
Volume 32 • Issue 2 • April 2018
Copyright
©2017 American Society of Civil Engineers.
History
Received: Mar 16, 2017
Accepted: Sep 5, 2017
Published online: Dec 28, 2017
Published in print: Apr 1, 2018
Discussion open until: May 28, 2018
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