A noniterative design procedure for supplemental brace-damper systems in single-degree-of-freedom systems

Abstract

SUMMARY: In this paper, a method for designing supplemental brace-damper systems in single-degree-of-freedom (SDOF) structures is presented. We include the effects of the supporting brace stiffness in the dynamic response by using a viscoelastic Maxwell model. On the basis of the study of an SDOF under ground excitation, we propose a noniterative design procedure for simultaneously specifying both the damper and the brace while assuring a desired structural performance. It is shown that to increase the damper size beyond the value delivered by the proposed criteria will not provide any improvement but actually worsen the structural response. The design method presented here shows excellent agreement with the FEMA 273 design approach but offers solutions closer to optimality. © 2013 John Wiley & Sons, Ltd.

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Authors/Creators:	Londoño, J.M. Neild, S. Wagg, D.
Copyright, Publisher and Additional Information:	© 2013 Wiley. This is an author produced version of a paper subsequently published in Earthquake Engineering and Structural Dynamics. Uploaded in accordance with the publisher's self-archiving policy.
Dates:	Published: December 2013
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	06 Oct 2014 09:53
Last Modified:	29 Mar 2018 02:50
Published Version:	http://dx.doi.org/10.1002/eqe.2339
Status:	Published
Publisher:	Wiley
Refereed:	No
Identification Number:	https://doi.org/10.1002/eqe.2339

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A noniterative design procedure for supplemental brace-damper systems in single-degree-of-freedom systems

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