Probabilistic Building Functionality Estimation Framework for Buildings Subjected to Hurricane Winds
Publication: Journal of Structural Engineering
Volume 148, Issue 10
Abstract
Buildings are vulnerable to extreme winds, both physically and functionally. Although many studies exist on buildings’ structural and interior damage modeling, limited research exists on the modeling of buildings’ functionality loss under extreme winds. In this paper, a novel probabilistic building functionality estimation framework is developed to quantitatively evaluate the functionality of buildings under hurricane winds. The functionality of a building is evaluated by integrating the functionalities of individual building systems (e.g., envelope, interior, electrical, and HVAC) that are determined by a detailed component-level damage analysis considering uncertainty in wind loading, rain ingress, and component resistance capacity. The proposed framework is demonstrated with a 1-story wood residential building by estimating its shelter function. The fragility curves are developed for multiple functionality states of the shelter function and compared with the fragility curves developed for the envelope system only. The comparison indicated that the functionality of a building evaluated by considering the four building systems was significantly lower than the functionality evaluated by considering only the envelope system. Thus, considering the envelope system only will largely underestimate the building functionality loss.
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Data Availability Statement
Public data sources are provided in the article. Data, models, or code generated or used during the study are available from the corresponding author by request. Data generated in this study include the functionality ratios of the building’s supporting systems (envelope, interior, electrical, and HVAC); the stage exceedance probabilities of the functionality for the shelter function; and the relationships between the functionalities of the building’s supporting systems of a 1-story wood residential building.
Acknowledgments
The financial support provided by the China Scholarship Council is gratefully acknowledged. We would also like to show our gratitude to Mr. Dustin Taylor Burns, the Technical Services Supervisor of the Newmark Structural Engineering Laboratory (NSEL) of the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign, who provided insight and expertise to develop the blueprint in Fig. 3.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 10 • October 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Nov 18, 2020
Accepted: Mar 31, 2022
Published online: Jul 20, 2022
Published in print: Oct 1, 2022
Discussion open until: Dec 20, 2022
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