A method of calculating the non-linear seismic response of a building braced with viscoelastic dampers

Hyun Choi, Wook Bae Kim, Sang Jo Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Buildings are continually subject to dynamic loads, such as wind load, seismic ground motion, and even the load from internal utility machines. The recent trend of constructing more flexible high-rise buildings underscores the importance of including viscoelastic dampers in building designs. Viscoelastic dampers are used to control the dynamic response of a building. If the seismic design is based only on the linear response spectrum, considerable error may occur when calculating the seismic response of a building; rubber viscoelastic dampers show non-linear hysteretic damping that is quite different from viscous damping. This study generated a non-linear response spectrum using a non-linear oscillator model to simulate a building with viscoelastic dampers installed. The parameters used in the non-linear damper model were obtained experimentally from dynamic loading tests. The results show that viscoelastic dampers effectively reduce the seismic displacement response of a structure, but transmit more seismic force to the structure, which essentially increases its seismic acceleration response.

Original languageEnglish
Pages (from-to)1715-1728
Number of pages14
JournalEarthquake Engineering and Structural Dynamics
Volume32
Issue number11
DOIs
Publication statusPublished - 2003 Sep

Fingerprint

Seismic response
seismic response
damping
Damping
loading test
architectural design
Seismic design
seismic design
Dynamic loads
dynamic response
rubber
ground motion
Dynamic response
Loads (forces)
Rubber
method
trend
parameter
high-rise building

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)

Cite this

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A method of calculating the non-linear seismic response of a building braced with viscoelastic dampers. / Choi, Hyun; Kim, Wook Bae; Lee, Sang Jo.

In: Earthquake Engineering and Structural Dynamics, Vol. 32, No. 11, 09.2003, p. 1715-1728.

Research output: Contribution to journalArticle

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