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Influence of Fire on the Lateral Resistance of Cold-Formed Steel Shear Walls Phase 2: Oriented Strand Board, Strap Braced, and Gypsum-Sheet Steel Composite
Published
Author(s)
Matthew S. Hoehler, Blanca Andres Valiente, Matthew F. Bundy
Abstract
This report presents experimental investigations of the performance of cold-formed steel lateral force-resisting systems (CFS-LRFS) under combinations of simulated earthquake and fire loading. Three types of shear wall systems are investigated: gypsum-sheet steel composite panel sheathed walls, oriented strand board (OSB) sheathed walls, and steel strap braced walls. Twenty-two 2.7 m tall by 3.7 m long test specimens are subjected sequentially to combinations of mechanical (cyclic shear deformation) and thermal (fire) load. The mechanical loading setup and protocol are based on ASTM E2126 Method C (CUREE Basic Loading Protocol). Fire loads of varying intensity that represent the characteristics of actual fires are investigated. The work is a step toward developing fragility curves (representations of the probability of exceeding a given damage state as a function of an engineering demand parameter) for these systems and is essential for performance-based design for fire.
Hoehler, M.
, Andres, B.
and Bundy, M.
(2019),
Influence of Fire on the Lateral Resistance of Cold-Formed Steel Shear Walls – Phase 2: Oriented Strand Board, Strap Braced, and Gypsum-Sheet Steel Composite, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2038
(Accessed October 11, 2025)