Chapter
Nov 27, 2018
Eighth Congress on Forensic Engineering
Collapse of Two Steel Buildings after Snow Accumulated on Their Roofs
Authors: Zeno Martin [email protected] and Trent Tinney, M.ASCE [email protected]Author Affiliations
Publication: Forensic Engineering 2018: Forging Forensic Frontiers
ABSTRACT
In early February 2017, near Yakima, Washington, snow accumulation on the roof triggered the collapse of a 125 foot by 85 foot single-story, steel building (Building 1) originally constructed in 2011. Two days later, about 100 feet away, a separate, similarly constructed building (Building 2), originally constructed in 2012, collapsed due to similar circumstances. The authors were hired to investigate the cause of the collapses for potential subrogation. Security video recorded the entire sequence of the Building 1 collapse. From the video, the snow depth on the roof was estimated to be 15 to 22 inches. Field investigation found that flange bracing for the steel column frames was not installed as specified. Each column frame was observed to have buckled at the same location as the missing bracing. The collapse was determined to be caused by the omitted bracing that reduced the column’s capacity to resist the imposed load.
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REFERENCE
SEAO (Structural Engineers Association of Oregon). (2007). Snow load analysis for Oregon, 3rd Edition. SEAO, Portland, OR.
Information & Authors
Information
Published In
Forensic Engineering 2018: Forging Forensic Frontiers
Pages: 297 - 308
Editors: Rui Liu, Ph.D., Kent State University, Michael P. Lester, Element Analytical, Alicia E. Díaz de León, and Michael J. Drerup
ISBN (Online): 978-0-7844-8201-8
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Nov 27, 2018
Published in print: Nov 27, 2018
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Authors
Affiliations
P.E., S.E.
Wiss, Janney, Elstner Associates, Inc. (WJE), 960 South Harney St., Seattle, WA 98108. E-mail: [email protected]
P.E.
Wiss, Janney, Elstner Associates, Inc. (WJE), 960 South Harney St., Seattle, WA 98108. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.