Cold-Formed Steel Wood Sheathed Shear Wall Panel examples

In order to check the accuracy of the proposed models, results from quasi-static non-linear analyses of Woodsheathed Cold-Formed Steel Shear Wall Panel have been carried out using CFSSSWP uniaxialMaterial models implemented into OpenSees software. For this purpose, specimen No 16, No 26 and No 32 tested by Branston et al. (2006) were selected from the literature and analyzed under similar loading conditions. This set of specimens covers a wide range of variation in physical and mechanical characteristics such as: spacing, number, shear strength, diameter of screw fasteners (sc, nc, Vs, and ds); wall aspect ratio (H/W); frame thickness, chord stud moment of inertia, chord stud cross section area, interior stud moment of inertia, yield and tensile strengths of steel frame (tf, Af, Ife, Ifi, fyf, and fuf); type of sheathing wood (DFP: Douglas Fir Plywood, OSB: Oriented strand Board and CSP: Canadian Soft Plywood), sheathing thickness, as well as the yield and tensile strengths of sheathing (type, ts, Fys, and Fus).

Each SWP was subjected to the Consortium of Universities for Research in Earthquake Engineering (CUREE) loading protocol.

uniaxialMaterial CFSWSWP 26 2440 2440 344 1.12 181600 51240 12.5 1 4.064 3256 102 98 3 0 0

Fig 1. Comparison between wood sheathed CFS SWP experimental and numerical results specimens No 26

uniaxialMaterial CFSWSWP 32 2440 2440 344 1.12 181600 51240 12.5 1 4.064 3256 102 98 3 0 0

Fig 2. Comparison between wood sheathed CFS SWP experimental and numerical results specimens No 32

uniaxialMaterial CFSWSWP 16 2440 610 344 1.12 181600 51240 12.5 1 4.064 3256 152 40 3 0 0

Fig 2. Comparison between wood sheathed CFS SWP experimental and numerical results specimens No 16

REFERENCE:

Smail Kechidi, Hysteresis model development for cold-formed steel shear wall panel based on physical and mechanical characteristics, Master Thesis, University of Blida 1, Algeria, 2014.

Smail Kechidi and N Bourahla, Deteriorating hysteresis model for cold-formed steel shear wall panel based on physical and mechanical characteristics, OpenSees Days Portugal 2014- OPD 2014, 3-4 July 2014, Porto, Portugal.

L.N. Lowes, A. Altoontash, Modelling reinforced-concrete beam-column joints subjected to cyclic loading, Journal of Structural Engineering, 129(12):1686-1697, 2003.

A.E. Branston, Y.C. Chen, F.A. Boudreault and C.A. Rogers, Testing of light-gauge steel frame wood structural panel shear walls, Canadian Journal of Civil Engineering, 33(9):561-572, 2006.

J. Martinez and L. Xu, Strength and stiffness determination of shear wall panels in cold-formed steel framing, Thin-Walled Structures, 44(10):1084-1095, 2006.

---

Code Developed by: Smail Kechidi and Nouredine Bourahla, University of Blida 1, Algeria

Images Developed by: Smail Kechidi, University of Blida 1

---

Authors contact:

Smail Kechidi, PhD student at University of Blida 1, Algeria, skechidi@yahoo.com

Nouredine Bourahla, Professor at University of Blida 1, Algeria, nbourahla@univ-blida.dz