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Design of Viscoelastic Dampers to Meet Performance Objectives  

김진구 (성균관대학교 건축공학과)
최현훈 (성균관대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.15, no.2, 2002 , pp. 329-339 More about this Journal
Abstract
This research presents a systematic design procedure for supplemental viscoelastic dampers required to satisfy the given performance objectives using capacity spectrum method. To obtain required damper size, the amount of supplemental damping was computed from effective damping minus equivalent damping and inherent damping of structure. In the case of viscoelastic damper, iterative procedure is required because of the inherent stiffness of the damper. To verify the design method proposed in this study, parametric studies were performed for single degree of freedom systems with design variables. The method was also applied to a 10-story steel framed structure and the earthquake responses were obtained. According to time history analysis result the controlled displacements turned out to be close to the target displacement regardless of the design parameters.
Keywords
viscoelastic damper; capacity spectrum method; effective damping ratio; performance based seismic design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 FEMA, 'NEHRP Guidelines for the seismic rehabilitation of buildings,' FEMA-273, Federal Emergency Management Agency, Washington, D.C., 1997
2 Mahin, S. A. and Lin, J., 'Inelastic response spectra for single degree of freedom systems,' Dept. of Civil Engineering, University of California, Berkeley, 1983
3 ATC, 'Seismic evaluation and retrofit of concrete buildings,' ATC-40, Applied Technology Council, Redwood City, California, 1996
4 Tsai, K. C. and Li, J. W., 'DRAIN2D+, A general purpose computer program for static and dynamic analyses of inelastic 2D struc- tures supplemented with a graphic processor,' Report No. CEER/R86-07, National Taiwan University, Taipei, Taiwan, 1997
5 Soong, T. T., and Dargush, G. F., 'Passive energy dissipation systems in structural engineering,' State university of New York at Buffalo, 1996
6 김진구, 최현훈, 'Evaluation of proper supplemental damping for a multistory steel frame using capacity spectrum method,' 한국지진공학회 논문집, 제5권2호, 2001, pp.103-111
7 Chopra, A. K., Dynamics of structures, Prentice Hall, 1995
8 한국지진공학회, '내진설계기준연구(II),' 건설교통부, 서울, 1997
9 POSCO Engineering & Construction Co., Ltd, MIDAS-GEN, Vol. I-Vol, IV, 1999
10 Vanmarcke, E. H. and Gasparini, D. A., A program for artificial motion generation, User's manual and documentation, Dept. of Civil Engineering, Massachusetts Institute of Technology, 1976
11 SEAOC, 'Tentative Guidelinesfor Performance-Based Seismic Engineering,' SEAOC Blue Book, Structural Engineers Association of California, 1999
12 김진구, 최현훈, '비탄성 정적해석을 이용한 점성감쇠기의 설계,' 한국전산구조공학회 가을 학술발표회 논문집, 제13권 제2집, 2000, pp.257-264