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

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)2361–2367
Number of pages7
JournalEarthquake Engineering and Structural Dynamics
Early online date26 Jun 2013
DateE-pub ahead of print - 26 Jun 2013
DatePublished (current) - 6 Nov 2013


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.

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  • Damping_Design_Short2

    Rights statement: This is the accepted version of the following article: [full citation], which has been published in final form at

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