Dynamic characteristics and seismic response of adjacent buildings linked by discrete dampers
✍ Scribed by Zhang, W. S.; Xu, Y. L.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 219 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0098-8847
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✦ Synopsis
Coupling adjacent buildings using discrete viscoelastic dampers for control of response to low and moderate seismic events is investigated in this paper. The complex modal superposition method is "rst used to determine dynamic characteristics, mainly modal damping ratio and modal frequency, of damper-linked linear adjacent buildings for practical use. Random seismic response of linear adjacent buildings linked by dampers is then determined by a combination of the complex modal superposition method and the pseudo-excitation method. This combined method can e!ectively and accurately determine random seismic response of non-classically damped systems in the frequency domain. Parametric studies are "nally performed to identify optimal parameters of viscoelastic dampers for achieving the maximum modal damping ratio or the maximum response reduction of adjacent buildings. It is demonstrated that using discrete viscoelastic dampers of proper parameters to link adjacent buildings can reduce random seismic responses signi"cantly.