Novel Design Procedures for Rectangular Hollow Steel Sections Subject to Compression and Major and Minor Axis Bending
Publication: Practice Periodical on Structural Design and Construction
Volume 20, Issue 4
Abstract
This paper presents novel and cost-effective design procedures for rectangular hollow steel sections (RHSS) subject to combined compression and major and minor axis bending. Although this loading pattern is very common in practice, very little research has addressed the local stability of RHSS for this loading condition. Furthermore, current North American and European design provisions ignore rotational and lateral restraints in evaluating local web buckling stress of RHSS. This paper provides an analytical closed-form expression to compute web buckling stress with rotational and lateral restraints under compression and biaxial bending. The accuracy of the expression is compared numerically and with existing expressions for the limiting simply supported condition. The maximum difference was found to be less than 2%. The behavior of standard RHSS is also reexamined. Guidelines are also provided for practicing engineers and steel fabricators to optimize the design of RHSS.
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Published In
Practice Periodical on Structural Design and Construction
Volume 20 • Issue 4 • November 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Apr 21, 2014
Accepted: Sep 24, 2014
Published online: Nov 7, 2014
Published in print: Nov 1, 2015
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