Hysteretic behaviour of bracing‐type pure aluminium shear panels by experimental tests

This paper deals with experimental tests aimed at assessing the structural performance of pure aluminium shear panels to be employed as passive energy dissipation devices with a bracing type configuration. The AW1050 A H24 is adopted as the basic material. It is an aluminium alloy with a negligible content of impurity, allowing it to be considered as a pure aluminium. In this paper, the results of four full-scale 5thinspacemm thick multi-stiffened square-shaped specimens tested under cyclic diagonal loads and characterized by different slenderness ratios are presented. In order to determine the main resisting mechanisms for different shear strain demands, a careful examination of the experimental evidences is provided. Then, the global performance of tested shear panels is evaluated by the comparison of the obtained hysteretic responses, evidencing the effect of the plate slenderness on the energy dissipation capacity. Finally, a suitable analytical model, which could be useful to implement global dynamic non-linear analysis, is set up in order to interpret the behaviour of shear panels for which the development of premature buckling phenomena is completely inhibited. Copyright © 2010 John Wiley & Sons, Ltd.

[1]  Durgesh C. Rai,et al.  Postyield Cyclic Buckling Criteria for Aluminum Shear Panels , 2008 .

[2]  W. Ramberg,et al.  Description of Stress-Strain Curves by Three Parameters , 1943 .

[3]  Masayoshi Nakashima,et al.  Strain-Hardening Behavior of Shear Panels Made of Low-Yield Steel. I: Test , 1995 .

[4]  Federico M. Mazzolani,et al.  Seismic response of MR steel frames with low-yield steel shear panels , 2003 .

[5]  Torsten Höglund.  Shear buckling resistance of steel and aluminium plate girders , 1997 .

[6]  Federico M. Mazzolani,et al.  Numerical and experimental analysis of pure aluminium shear panels with welded stiffeners , 2008 .

[7]  G. De Matteis,et al.  Pure aluminium shear panels as dissipative devices in moment‐resisting steel frames , 2007 .

[8]  Kiyoshi Tanaka,et al.  STUDY ON PRACTICAL APPLICATION OF DAMAGE TOLERANT STRUCTURES WITH SEISMIC CONTROL PANEL USING LOW-YIELD-POINT STEEL TO A HIGH-RISE STEEL BUILDING , 1997 .

[9]  Vincent Caccese,et al.  Postbuckling Behavior of Steel-Plate Shear Walls under Cyclic Loads , 1993 .

[10]  Mamoru Iwata,et al.  ENERGY DISSIPATION BEHAVIOUR OF SHEAR PANELS MADE OF LOW YIELD STEEL , 1994 .

[11]  Geoffrey L. Kulak,et al.  Experimental study of steel plate shear walls , 1983 .

[12]  Vincent Caccese,et al.  Experimental Study of Thin Steel‐Plate Shear Walls under Cyclic Load , 1993 .

[13]  Durgesh C. Rai,et al.  ALUMINIUM SHEAR-LINKS FOR ENHANCED SEISMIC RESISTANCE , 1998 .

[14]  Federico M. Mazzolani,et al.  Experimental tests on pure aluminium shear panels with welded stiffeners , 2008 .