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doi:10.3850/978-981-08-7920-4_S2-S112-cd
On the Elastic Local Buckling of the Webs of Steel Cellular Columns
Khaled M. El-Sawy and Amr M. I. Sweedan
Department of Civil and Environmental Engineering,
Faculty of Engineering, UAE University, Al-Ain, United Arab Emirates.
ABSTRACT
This study investigates numerically the impact ofmultipleweb perforations on the local stability
of web plates of cellular steel columns. The Finite Element Method is employed to perform a
parametric analysis to determine the critical elastic uniaxial stress at which local buckling of
the perforated web occurs. The interaction between the flanges and the web is ignored and the
web is approximately modeled as a long plate with restrained out-of-plane displacements along
its four edges. The effect of the different geometrical parameters of the perforated web on the
buckling stress is investigated. These parameters include the plate’s length and width, and the
perforations’ diameter and spacing. The results of the parametric analysis are used to develop
a non-dimensional formula that expresses the elastic uniaxial buckling stress of the perforated
web plate as a function of the various geometries and perforation configurations.
Keywords: Steel, Cellular, Elastic local buckling, Perforated web, Finite element method.
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