Instability of Axially Loaded Compression Members under Lateral Rigid Body Excitations
Publication: Journal of Structural Engineering
Volume 137, Issue 10
Abstract
The global compressive capacity of steel members subject to lateral rigid body dynamic excitation is examined numerically with a dynamic nonlinear finite-element analytical algorithm that uses the implicit Newmark- integration procedure combined with the Newton-Raphson iterative scheme. The algorithm was validated with experimental results. Parametric studies on 180 box, tube, and shapes are presented. The members included initial geometric imperfections along their lengths. On the basis of the parametric study, a simplified formula for the buckling capacity of a steel member under lateral rigid body excitations is presented that may be considered for the use in the development of a design formula.
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Acknowledgments
The writers are grateful to Dr. S. Kuranishi, Honorary Professor of Tohoku University who initiated this investigation. Financial aid provided by Japanese Kozai Club Research Foundation was gratefully acknowledged. The findings and conclusions of this paper; however, are those of the authors alone. The authors wish to thank Mr. R. Tanaka of the Graduate School of Engineering at the University of Ryukyu for some computer analyzes and plots. The numerical analysis was performed using the computer facilities of the Information Processing Center at the University of Ryukyu, Okinawa. The authors also appreciate the careful review and subsequent suggestions made by the reviewers of the original manuscript, which substantially improved the present paper.
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Information
Published In
Journal of Structural Engineering
Volume 137 • Issue 10 • October 2011
Pages: 1096 - 1103
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Feb 1, 2008
Accepted: Sep 12, 2010
Published online: Sep 22, 2010
Published in print: Oct 1, 2011
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