American Society of Civil Engineers

Seismic Behavior of Sheathed Cold-Formed Structures: Physical Tests

by Raffaele Landolfo, (corresponding author), (Prof., Dept. of Constructions and Mathematical Methods in Arch., Univ. of Naples “Federico II,” Via Monteoliveto, 80134 Napoli, Italy E-mail:, Luigi Fiorino, (Engineer, No affiliation information available.; formerly, Engineer, Dept. of Struct. Analysis and Design, Univ. of Naples “Federico II,” P. le Tecchio 80, 80125 Napoli, Italy. E-mail:, and Gaetano Della Corte, (Asst. Prof., Dept. of Struct. Analysis and Design, Univ. of Naples “Federico II,” P. le Tecchio 80, 80125 Napoli, Italy. E-mail:

Journal of Structural Engineering, Vol. 132, No. 4, April 2006, pp. 570-581, (doi:

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Document type: Journal Paper
Abstract: The paper presents the results of an experimental study on the seismic behavior of cold-formed steel stud shear walls, sheathed with wood-based [oriented strand board (OSB)], and gypsum-based (wallboard) panels. Tests were carried out on two, nominally identical, prototypes, which were designed in such a way to contain all the structural elements and components used for this type of structure. The first specimen was tested under monotonic loading conditions. The second one was instead tested under cyclic loading conditions, with a loading history previously derived from an ad hoc numerical study of the deformation histories likely to be imposed by typical Italian earthquakes. The results obtained allow consideration of typical seismic behavior issues (capacity design, connections between horizontal diaphragms and vertical walls, performance criteria) to be drawn. In particular, all the components of this structural system can be designed according to capacity design criteria, imposing collapse in the sheathing connections of the vertical shear wall. In addition, no appreciable deformation of the OSB sheathing-to-floor framing connections was observed in both monotonic and cyclic tests.

ASCE Subject Headings:
Cold-formed steel
Full-scale tests
Shear walls
Seismic effects