Static and Dynamic Modeling and Analysis of Tube Frames
Publication: Journal of Structural Engineering
Volume 110, Issue 12
Abstract
Tube frame structures subjected to static or dynamic loads are usually analyzed by the finite element method in which the structure is represented by a large system of equations. This method, however, requires extensive alculations and considerable efforts in data preparation and output interpretation. The paper presents an approximate method in which the tube structure is represented by a continuum. The model considers the shear‐lag effect, which is significant in tube structures, as well as shear and flexural deformation. The continuous model is then represented by a set of first‐order differential equations. They are solved numerically using a fourth‐order approximation technique, and the results compared to results of finite element code. The resulting deflection, frequencies and mode shapes predicted by the continuous model show excellent comparison to the finite element results.
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References
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Chang, P., “An Approximate Dynamic Analysis of Tube Structures,” thesis submitted to the University of Illinois at Urbana‐Champaign, in 1982, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
2.
Coull, A., and Ahmed, A., “Simplified Analysis of Bundled‐Tube Structures,” Journal of the Structures Division, ASCE, Vol. 108, No. ST5, May, 1982.
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Copyright © 1984 ASCE.
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Published online: Dec 1, 1984
Published in print: Dec 1984
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