Multicriteria and Multilevel Framework for Seismic Risk Management of Existing Buildings in Canada
Publication: Journal of Performance of Constructed Facilities
Volume 34, Issue 2
Abstract
A multicriteria and multilevel seismic risk management framework is presented to ensure an acceptable and consistent level of risk for existing buildings in Canada with a focus on minimizing threats to life safety. The framework consists of three levels: (1) Level 1: preliminary seismic-risk screening tool (PST); (2) Level 2: semiquantitative seismic-risk screening tool (SQST); and (3) Level 3: seismic evaluation guidelines (SEG). Level 1 (PST) was developed based on a number of key criteria (seismicity, benchmark code edition, consequences of failure, and remaining occupancy time) to assist in exempting existing buildings from further assessment without the need for a site visit. Level 2 (SQST) consists of three key components: (1) structural scoring system that quantitatively assesses the structural seismic risk based on the probability of collapse; (2) nonstructural components scoring system that qualitatively evaluates the seismic risk of nonstructural components based on the seismic demand of critical nonstructural components; and (3) ranking procedure that prioritizes buildings with potentially unacceptable seismic risk for the Level 3 (SEG) based on structural and nonstructural components priority indices. The Level 3 (SEG) aims to identify the building deficiencies that lead to unacceptable seismic risk for existing buildings.
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Acknowledgments
The authors wish to acknowledge the financial support and technical feedback of Public Services and Procurement Canada for the development of the Framework for Seismic Risk Management of Existing Buildings in Canada.
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Published In
Journal of Performance of Constructed Facilities
Volume 34 • Issue 2 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Mar 25, 2019
Accepted: Jul 3, 2019
Published online: Jan 14, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 14, 2020
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