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Lateral Resistance Reduction to Cold-Formed Steel-Framed Shear Walls under Various Fire Scenarios

Hoehler, Matthew S. ; Andres, Blanca LU and Bundy, Matthew F. (2020) In Journal of Structural Engineering (United States) 146(5).
Abstract

This paper examines the structural response of cold-formed steel-framed building lateral force-resisting systems under combinations of simulated earthquake and fire loading. Full-scale experiments with gypsum-sheet steel composite panel sheathed walls, oriented strand board sheathed walls, and steel strap braced walls are presented. Twenty-two test specimens are subjected sequentially to combinations of cyclic shear deformation and fires of varying intensity; some approximate temperatures in standard furnace tests, and most have characteristics of actual building fires. In select tests, the walls are predamaged to simulate fire following an earthquake. The results show a progressive decrease of postfire lateral load capacity with... (More)

This paper examines the structural response of cold-formed steel-framed building lateral force-resisting systems under combinations of simulated earthquake and fire loading. Full-scale experiments with gypsum-sheet steel composite panel sheathed walls, oriented strand board sheathed walls, and steel strap braced walls are presented. Twenty-two test specimens are subjected sequentially to combinations of cyclic shear deformation and fires of varying intensity; some approximate temperatures in standard furnace tests, and most have characteristics of actual building fires. In select tests, the walls are predamaged to simulate fire following an earthquake. The results show a progressive decrease of postfire lateral load capacity with increasing fire intensity for all walls; however, each wall type exhibits varied sensitivity to the fire intensity as well as to predamage. By understanding the response of these structural systems in real fires, designers can better plan for situations in which multiple hazards, including fire, exist.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cold-formed steel, Earthquake, Fire, Gypsum-sheet steel composite panel, Oriented strand board, Shear wall, Strap bracing
in
Journal of Structural Engineering (United States)
volume
146
issue
5
article number
04020066
publisher
American Society of Civil Engineers (ASCE)
external identifiers
  • scopus:85081579967
ISSN
0733-9445
DOI
10.1061/(ASCE)ST.1943-541X.0002610
language
English
LU publication?
no
id
0aa527bc-52ae-4e2f-ae24-a84eb54e3119
date added to LUP
2020-06-22 15:23:12
date last changed
2020-10-07 07:00:34
@article{0aa527bc-52ae-4e2f-ae24-a84eb54e3119,
  abstract     = {<p>This paper examines the structural response of cold-formed steel-framed building lateral force-resisting systems under combinations of simulated earthquake and fire loading. Full-scale experiments with gypsum-sheet steel composite panel sheathed walls, oriented strand board sheathed walls, and steel strap braced walls are presented. Twenty-two test specimens are subjected sequentially to combinations of cyclic shear deformation and fires of varying intensity; some approximate temperatures in standard furnace tests, and most have characteristics of actual building fires. In select tests, the walls are predamaged to simulate fire following an earthquake. The results show a progressive decrease of postfire lateral load capacity with increasing fire intensity for all walls; however, each wall type exhibits varied sensitivity to the fire intensity as well as to predamage. By understanding the response of these structural systems in real fires, designers can better plan for situations in which multiple hazards, including fire, exist.</p>},
  author       = {Hoehler, Matthew S. and Andres, Blanca and Bundy, Matthew F.},
  issn         = {0733-9445},
  language     = {eng},
  month        = {05},
  number       = {5},
  publisher    = {American Society of Civil Engineers (ASCE)},
  series       = {Journal of Structural Engineering (United States)},
  title        = {Lateral Resistance Reduction to Cold-Formed Steel-Framed Shear Walls under Various Fire Scenarios},
  url          = {http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002610},
  doi          = {10.1061/(ASCE)ST.1943-541X.0002610},
  volume       = {146},
  year         = {2020},
}