Structural Engineering and Mechanics

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Seismic study of buildings with viscoelastic dampers

  • Pong, W.S. (Department of Civil Engineering, SUNY at Buffalo) ;
  • Tsai, C.S. (Department of Civil Engineering, SUNY at Buffalo)
  • Published : 1995.11.25
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Abstract

In this paper, the seismic behavior of a 10-story building equipped with viscoelastic dampers is analyzed. The effects of ambient temperature, the thickness, the total area, and the position of the viscoelastic dampers are studied. Results indicate that the energy-absorbing capacity of viscoelastic damper decreases with increasing the ambient temperature. The thickness and the total area of viscoelastic dampers also affect the seismic mitigation capacity. The thickness cannot be too small, which is not effective in vibration reduction, nor can it be too large, which not only increases the cost but also reduces the seismic resistance. The total area of viscoelastic dampers should be determined properly for optimum damper performance at the most economical design. The mounting position of viscoelastic dampers also influences the structure's seismic performance. Numerical results show that, if properly equipped, the VE dampers can reduce the structural response both floor displacement and story shear force and increase the overall level of damping in structures during earthquakes.

Keywords

References

  1. Chang, K.C., Soong, T.T., Oh, S.T. and Lai, M.L. (1991), "Seismic response of 2/5 scale steel structure with added viscoelastic dampers", Report No. NCEER-91-0012, National Center for Earthquake Engineering Research, Buffalo, New York.
  2. Keel, C.J. and Mahmoodi, P. (1986), "Design of viscoelastic dampers for Columbia Center Building", Building Motion in Wind (Editor: Isyumov, N. and Tschanz, T.), ASCE, New York, 66-82.
  3. Tsai, C.S. (1993), "Innovative design of viscoelastic dampers for seismic mitigation", Nuclear Engineering and Design, 139, 83-106. https://doi.org/10.1016/0029-5493(93)90263-9
  4. Tsai, C.S. and Lee, H.H. (1993), "Applications of viscoelastic dampers to high-rise buildings", J. Struct. Engng, 119(4), 1222-1233. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:4(1222)

Cited by

  1. A combined honeycomb and solid viscoelastic material for structural damping applications vol.35, pp.8, 2003, https://doi.org/10.1016/S0167-6636(02)00210-7
  2. Parametric study for buildings with combined displacement-dependent and velocity-dependent energy dissipation devices vol.14, pp.1, 2002, https://doi.org/10.12989/sem.2002.14.1.085
  3. Interactive Behaviour of Structures Equipped with Combined Seismic Dampers and Unbounded Foundations vol.6, pp.2, 2003, https://doi.org/10.1260/136943303769013192