Techno Press

Steel and Composite Structures   Volume 18, Number 5, May 2015, pages 1259-1277
Behavior and design of perforated steel storage rack columns under axial compression
Bassel El Kadi and G. Kiymaz

Abstract     [Full Text]
    The present study is focused on the behavior and design of perforated steel storage rack columns under axial compression. These columns may exhibit different types of behavior and levels of strength owing to their peculiar features including their complex cross-section forms and perforations along the member. In the present codes of practice, the design of these columns is carried out using analytical formulas which are supported by experimental tests described in the relevant code document. Recently proposed analytical approaches are used to estimate the load carrying capacity of axially compressed steel storage rack columns. Experimental and numerical studies were carried out to verify the proposed approaches. The experimental study includes compression tests done on members of different lengths, but of the same cross-section. A comparison between the analytical and the experimental results is presented to identify the accuracy of the recently proposed analytical approaches. The proposed approach includes modifications in the Direct Strength Method to include the effects of perforations (the so-called reduced thickness approach). CUFSM and CUTWP software programs are used to calculate the elastic buckling parameters of the studied members. Results from experimental and analytical studies compared very well. This indicates the validity of the recently proposed approaches for predicting the ultimate strength of steel storage rack columns.
Key Words
    steel storage rack columns; reduced thickness method; elastic buckling; thin-walled columns; finite element analysis; finite strip method
(1) Bassel El Kadi:
Department of Civil Engineering, Faculty of Engineering, Fatih University, Buyukcekmece Campus, Istanbul, Turkey;
(2) G. Kiymaz:
Department of Civil Engineering, Faculty of Engineering, Antalya International University, Dosemealti, Antalya, Turkey.

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