Simple Method for Approximate Analysis of Framed Tube Structures
Publication: Journal of Structural Engineering
Volume 120, Issue 4
Abstract
Framed tube structures are particularly suitable for tall buildings. They act primarily like cantilevered box beams and since they generally have much larger lateral dimensions than the internal shear wall cores, they are more effective in resisting the overturning moments of the lateral loads. However, due to flexural and shear flexibilities of the frame members, the basic beam bending actions of the framed tubes are complicated by the occurrence of shear lag, which could significantly affect the stress distributions in the frame panels and reduce the lateral stiffnesses of the structures. In this paper, a simple hand‐calculation method is proposed for approximate analysis of framed tube structures with the shear lag effects taken into account. This method is suitable for quick evaluations during the preliminary design stage and can provide a better understanding of the effects of various parameters on the overall structural behavior. Numerical examples are given to demonstrate the ease of application and accuracy of the proposed method.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 4 • April 1994
Pages: 1221 - 1239
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Nov 30, 1992
Published online: Apr 1, 1994
Published in print: Apr 1994
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