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The shear buckling and postbuckling of the steel plates first occurs at a load that is much smaller than the design load. In the postbuckling regime the steel plates develop diagonal tension parallel to the shear buckles. This diagonal tension alternates direction as the horizontal component of the earthquake motion cycles. The significant behavior that governs the proper design occurs in the far postbuckling regime. Therefore, the buckling phenomenon remains in the background.
This and the next 3 images are from:
C.H. Li (1), K.C. Tsai (2), J.T. Chang (2) and C.H. Lin (1)
(1) Building Engineering Division, National Center for Research on Earthquake Engineering, Taiwan
(2) Department of Civil Engineering, National Taiwan University, Taiwan
“Cyclic test of a couple steel plate shear wall substructure”, Procedia Engineering, Vol. 14, pp 582-589, 2011
ABSTRACT: This research aimed to investigate the seismic behavior and design of the Coupled Steel Plate Shear Wall (C-SPSW). A prototype six-story C-SPSW building was designed based on the model building code. A 40% scale specimen was constructed as the bottom two-and-half-story substructure of the six-story C-SPSW prototype. The reduced scale sub-structural specimen was cyclically tested using the Multi-Axial Testing System (MATS) at the National Center for Research on Earthquake Engineering (NCREE). In addition to the cyclic lateral forces, the constant vertical loading and cyclic overturning moments were applied on the specimen simultaneously. The test results show that the C-SPSW specimen behaved in a ductile manner and dissipated significant amounts of hysteresis energy during the cyclic loadings. Finally, based on the experimental results, the implications in the capacity design for the bottom boundary column are discussed. A numerical simulation using finite element model was conducted. The analytical results quite match the overall and local experimental responses.
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