Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Response Spectra of Structure Installed Frictional Damping System

마찰형 감쇠를 갖는 구조물의 응답 스펙트럼

  • Published : 2007.01.20
Download PDF
⟨ Previous Next ⟩

Abstract

Structures with additional frictional damping system have strong nonlinearity that the dynamic behavior is highly affected by the relative magnitude between frictional force and excitation load. In this study, normalized response spectra of the structures with non-dimensional friction force are obtained through nonlinear time history analyses of the mass-normalized single degree of freedom systems using 20 ground motion data recorded on rock site. The variation of the control performance of frictional damping system is investigated in terms of the dynamic load and the structural natural period, of which effects were not considered in the previous studies. Least square curve fitting equations are presented for describing those normalized response spectrum and optimal non-dimensional friction forces are obtained for controlling the peak displacement and absolute acceleration of the structure based on the derivative of the curve-fitted design spectrum.

Keywords

References

  1. Soong, T. T. and Dargush, G. F. 1997, 'Passive Energy Dissipation Systems in Structural Engineering' , John Wiley & Sons
  2. Anil K. Chopra., 2001, 'Dynamics of Structures; Theory and Applications to Earthquake Engineering; Second Edition' , Prentice Hall
  3. Lin, Y Y, Tsai, M. H., Hwang, J. S. and Chang, K. C., 2003, 'Direct Displacement-based Design for Building with Passive Energy Dissipation Systems' , Engineering Structures, Vol. 25, pp. 25-37 https://doi.org/10.1016/S0141-0296(02)00099-8
  4. Imad H. Mualla, Borislav Blev, 2002, 'Performance of Steel Frames with a New Friction Damper Device under Earthquake Excitation', Engineering Structures, Vol. 24, pp. 365-371 https://doi.org/10.1016/S0141-0296(01)00102-X
  5. Min, K-W. and Kim, H.-S., 2003, 'Performance Based Design of Friction Dampers for Seismically Excited Structures' , Transactions of the Earthquake Engineering Society of Korea, Vol. 7, No. 6, pp. 17-24
  6. Park, J.-H. and Kang, K.-S., 2006, 'Experimental Study on the Probability-based Equivalent Linearization of a Friction Damperbrace System', Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 4, pp. 394-403 https://doi.org/10.5050/KSNVN.2006.16.4.394
  7. Lee, S. H., Min, K-W., Kim, H.J. and Lee, Y. C., 2004, 'Maximum Control Force for Sliding Mode Controller with Saturation Problem', Transactions of the Earthquake Engineering Society of Korea, Vol. 8, No. 2, pp, 1-8