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Artificial ground motion compatible with specified ground shaking peaks and target response spectrum
Abstract This article describes a hybrid simulation method to generate artificial ground motion time histories that are compatible with specified peak seismic acceleration, velocity and displacement as well as the target response spectrum of absolute acceleration. First, based on traditional methods that match the target spectrum in the frequency domain, an initial acceleration time history was synthesized to satisfy the specified peak acceleration, target spectral acceleration and intensity envelope. Second, by using the inversion formula of the seismic input to a linear single-degree-of-freedom system and by superimposing a series of narrow-band time histories in the time domain, the initial time history is further modified to allow its peak velocity and displacement to approach the targets and improve its matching precision with the target spectrum. Numerical examples are provided to demonstrate that the proposed method achieves good agreement with the target values.
Artificial ground motion compatible with specified ground shaking peaks and target response spectrum
Abstract This article describes a hybrid simulation method to generate artificial ground motion time histories that are compatible with specified peak seismic acceleration, velocity and displacement as well as the target response spectrum of absolute acceleration. First, based on traditional methods that match the target spectrum in the frequency domain, an initial acceleration time history was synthesized to satisfy the specified peak acceleration, target spectral acceleration and intensity envelope. Second, by using the inversion formula of the seismic input to a linear single-degree-of-freedom system and by superimposing a series of narrow-band time histories in the time domain, the initial time history is further modified to allow its peak velocity and displacement to approach the targets and improve its matching precision with the target spectrum. Numerical examples are provided to demonstrate that the proposed method achieves good agreement with the target values.
Artificial ground motion compatible with specified ground shaking peaks and target response spectrum
Zhao, Fengxin (author) / Zhang, Yushan (author) / Lü, Hongshan (author)
Earthquake Engineering and Engineering Vibration ; 5 ; 41-48
2006-06-01
8 pages
Article (Journal)
Electronic Resource
English
Artificial ground motion compatible with specified ground shaking peaks and target response spectrum
| Online Contents | 2006
| British Library Online Contents | 2011