Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Influence of Fire on the Shear Capacity of Cold-Formed Steel Framed Shear Walls

Published

Author(s)

Matthew S. Hoehler, Blanca Andres Valiente

Abstract

This paper presents experimental investigations of the performance of common lateral force- resisting systems used in cold-formed steel construction under sequential thermal (fire) and mechanical (earthquake) loading. Wall specimens with gypsum-sheet steel composite sheathing, Oriented Strand Board (OSB) sheathing, or steel strap bracing were tested. The results indicate that the OSB sheathed walls are more sensitive to fire-induced reduction of lateral capacity than the other investigated wall systems. Additionally, fire performance can be affected by pre-damage to the gypsum boards that provide fire protection to these walls. The results are useful for fire compartmentation design when significant lateral deformation of a building is anticipated and post-fire assessment to repair or replace a structure. The study represents a step toward developing fire fragility functions for cold-formed steel framed shear wall systems to enable performance-based fire design.
Proceedings Title
Wei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018
Conference Dates
November 7-8, 2018
Conference Location
St. Louis, MO

Keywords

cold-formed steel, lateral force-resisting system, fire, earthquake, gypsum-sheet steel composite sheathing, Oriented Strand Board, strap bracing
Created November 7, 2018, Updated December 10, 2018