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http://dx.doi.org/10.12989/eas.2015.8.5.1055

Earthquake response spectra estimation of bilinear hysteretic systems using random-vibration theory method  

Yazdani, Azad (Department of Civil Engineering, University of Kurdistan)
Salimi, Mohammad-Rashid (Department of Civil Engineering, University of Kurdistan)
Publication Information
Earthquakes and Structures / v.8, no.5, 2015 , pp. 1055-1067 More about this Journal
Abstract
A theoretical procedure to estimate spectral displacement of a hysteretic oscillator with bilinear stiffness excited by band-limited excitation is presented. The stochastic method of ground-motion simulation is combined with the random vibration theory to compute linear and nonlinear structural response. The response is obtained by computing the root-mean-square oscillator response using dissipation energy balancing by integrating over all energy levels of system weighting with the stationary probability density of the energy. The results are presented in a convenient form, and the accuracy of the procedure is assessed by comparison with results obtained with the time-domain method using the recorded data. The model shows little or no bias at the structural period of engineering interest.
Keywords
bilinear hysteretic; random-vibration; displacement; stochastic; point-source;
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Times Cited By KSCI : 2  (Citation Analysis)
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