[1]XU Liying,Liu Ning,WU Yingxiong.Definition and Selection of Long-period Ground Motion Based on the Anti-seismic Analysis[J].Journal of Seismological Research,2019,42(04):569-578.
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Definition and Selection of Long-period Ground Motion Based on the Anti-seismic Analysis
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
569-578
Column:
Public date:
2019-12-15
- Title:
- Definition and Selection of Long-period Ground Motion Based on the Anti-seismic Analysis
- Keywords:
- long-period ground motion; long-period component; average period; energy proportion; definition criteria
- CLC:
- P315.91
- DOI:
- -
- Abstract:
- In order to provide parameter bases for the selection of long-period ground motions for anti-seismic analysis,273 pieces of ground motions information is collected and filtered,which considered the basic parameters such as fault distance,PGA,PGV/PGA and average period of the ground motion.The response spectrum,Fourier spectrum and energy spectrum are compared to summarize the definition criteria of two kinds of special long-period ground motions and near-field and far-field ordinary ground motions; spectral parameters such as the energy duration ratio and the energy ratio of long-period components of ground motions are introduced to review the long-period ground motion definition results.The results show that the attenuation rate of response spectrum of long-period ground motion is slow,and the spectrum value of long-period ground is larger than that of the ordinary ground motion.Long-period ground motion has the characteristics that the seismic energy is large and concentrated in low frequency region.
- References:
- -
- Similar References:
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Last Update:
2019-12-15