Analysis of the Lateral Thrust in Bolted Steel Buckling-Restrained Braces. II: Engineering Analytical Estimates
Publication: Journal of Structural Engineering
Volume 138, Issue 10
Abstract
Part I of this work was concerned with the experimental and numerical analysis of the lateral force, or thrust, exerted by the inner core of a buckling-restrained brace (BRB) when, after buckling in compression, it arrives into contact with the external retaining case. As Part II of that study, this paper considers the case of a steel-bolted BRB, with an empty gap between core and containment struts, to attempt the derivation of engineering analytical expressions for such a thrust. It is found that the relationship between applied axial force and buckled wavelength does not obey Euler’s formula.
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Acknowledgments
This work has been partially supported by the Italian Ministry of University and Research (MIUR). The finite-element code ABAQUS was run at the Department of Civil Engineering, University of Brescia, under an academic license. The authors thank Prof. Angelo Carini, Department of Civil Engineering, University of Brescia, for several useful discussions.
References
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Genna, F., and Gelfi, P. (2012). “Analysis of the lateral thrust in bolted steel buckling-restrained braces. I: Experimental and numerical results.” J. Struct. Eng., 138(10), 1231–1243.
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Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 10 • October 2012
Pages: 1244 - 1254
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jul 11, 2011
Accepted: Dec 29, 2011
Published online: Jan 2, 2012
Published in print: Oct 1, 2012
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