Structural Functionality Scale for Light-Framed Wood Buildings with Indicators for Windstorm Damage
Publication: Journal of Structural Engineering
Volume 146, Issue 4
Abstract
A new, broadly applicable scale for measuring the structural functionality of light-framed wood buildings provides a foundation for progress in disaster and resilience research. Existing scales commonly used in resilience analysis are designed to measure damage and do not resolve functionality, the stated metric of most resilience models. The structural functionality of a building is defined as the ability of the building to provide the primary function as a shelter. Total functionality for a building includes additional nonstructural components, such as electric power, water, and transportation access. The structural functionality scale for light-framed wood buildings is designed to measure structural functionality directly. A set of structural functionality indicators for wind-damaged buildings provides a metric with distinguishable discrete indicators on the continuous structural functionality scale. The structural functionality indicators were designed to provide compatibility with existing scales related to wind damage. General guidelines for similarly metered indicators on the structural functionality scale provide a basis for measuring the impact of other hazards. The structural functionality scale and indicators provide a reference for comparison between resilience models and allow empirical measurements of structural functionality and resilience. Once adopted in conceptual resilience models, the structural functionality scale will provide a basis for validation with empirical measures.
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Acknowledgments
This project was funded in part by NOAA VORTEX-SE grant NA16OAR4590219. Damage surveys following Hurricane Harvey were funded by NSF RAPID grant 1759996. Daniel Rhee, Antonio Zaldivar, Guangzhao Chen, Alexander Zickar, Rishabh Moorjani, Amanda R. Lombardo, and Jennifer Vetrone all contributed to the field campaign surveying the recovery of Naplate, IL following tornado damage on February 28, 2017. This survey and the accompanying resilience analysis conducted by The Wind Engineering Research Laboratory at The University of Illinois at Urbana-Champaign provided inspiration and ongoing real-world reference for the structural functionality scale and indicators.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 4 • April 2020
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©2020 American Society of Civil Engineers.
History
Received: Jan 29, 2019
Accepted: Aug 12, 2019
Published online: Jan 30, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 30, 2020
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