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http://dx.doi.org/10.5000/EESK.2005.9.1.009

ATC-55 Based Friction Damper Design Procedure for Controlling Inelastic Seismic Responses  

Kim, Hyoung-Seop (단국대학교 건축대학 건축공학과)
Min, Kyung-Won (단국대학교 건축대학 건축공학과)
Lee, Sang-Hyun (서울대학교 공학연구소)
Park, Ji-Hun (단국대학교 건축대학 건축공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.1, 2005 , pp. 9-16 More about this Journal
Abstract
The purpose of this paper is to present a design procedure of a friction damper for controlling elastic and inelastic responses of building structures under earthquake excitation. The equivalent damping and period increased by the friction damper are estimated using ATC-40 and ATC-55 procedures which provide equivalent linear system for bilinear one, and then a design formula to achieve target performance response level by the friction damper is presented. It is identified that there exists error between the responses obtained by this formula and by performing nonlinear analysis and the features of the error vary according to the hardening ratio, yield strength ratio, and structural period. Equations for compensating the error are proposed based on the least square method, and the results from numerical analysis indicate that the error is significantly reduced. The proposed formula can be used without much error for designing a friction damper for retrofitting a structure showing elastic or inelastic behavior.
Keywords
design procedure; inelastic responses; friction dampers; equivalent damping; equivalent period;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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