The effect of out-of-plane flexural stiffness of boundary frame on buckling stress patterns of steel plate shear wall

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The Effect of Out-of-Plane Flexural Stiffness of Boundary Frame on Buckling Stress Patterns of Steel Plate Shear Wall
P. MEMARZADEH*, M. AZHARI†, M.M. SAADATPOUR†
*Department of Civil Engineering, Islamic Azad University, Najafabad Branch, Najafabad
†Department of Civil Engineering, Isfahan University of Technology, Isfahan
IRAN
mojtaba@cc.iut.ac.ir
Abstract: - When buckling occurs in the infill plate of Steel Plate Shear Wall (SPSW), a diagonal
tension field is formed through the plate. It seems that the lateral displacements of plate due to
buckling may have a role in formation of the tension field. Meanwhile revealing this role, this paper
investigates the influence of out-of-plane flexural stiffness of boundary members (i.e. beams and
columns) on the buckling coefficients and the tension field behaviour of SPSW associated with the
symmetric and anti-symmetric buckling modes. The linear buckling equations in the sense of von-
Karman have been solved in conjunction with various boundary conditions, by using the Ritz method.
Key-Words: - Steel shear wall, Thin plate, Shear buckling, Symmetric, Anti-symmetric, Ritz method, Principal stresses

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