Estimating Postfire Residual Capacity of Heavily Damaged Concrete Members
Publication: Journal of Performance of Constructed Facilities
Volume 35, Issue 2
Abstract
This paper presents a five-step approach to estimate residual capacity of concrete members that undergo severe temperature-induced damage during fire exposure. Limited information pertaining to the fire event, including fire timeline, peak fire temperature, and compartment characteristics, is utilized to estimate fire severity in the first step. In the second step, peak temperatures experienced on exposed surfaces of the structural members at different locations in the structure (compartments) are estimated through visual inspection. A more detailed classification of temperature-induced damage in structural members based on information collected through visual assessment is performed in the third step. Subsequently, residual capacity of the structural member is estimated in the fourth and fifth steps through either simplified or advanced analysis methods based on the extent of damage as per the classification scheme. The proposed approach can be applied in practice for postfire residual capacity assessment of severely damaged concrete structures.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors wish to acknowledge the support of United States Agency for International Development (through the Pakistan–US Science and Technology Cooperative Program Grant PGA-2000003665) and Michigan State University for undertaking this research. Any opinions, findings, conclusions, or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the institution.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 35 • Issue 2 • April 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Dec 13, 2019
Accepted: Sep 28, 2020
Published online: Dec 31, 2020
Published in print: Apr 1, 2021
Discussion open until: May 31, 2021
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