[1]ZHANG Zhaopeng,RONG Mianshui,LU Tao,et al.Discussion on Rationality of Basic Assumptions When Applying HVSR Method to Strong Earthquake Data[J].Journal of Seismological Research,2019,42(04):538-545.
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Discussion on Rationality of Basic Assumptions When Applying HVSR Method to Strong Earthquake Data
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
538-545
Column:
Public date:
2019-12-15
- Title:
- Discussion on Rationality of Basic Assumptions When Applying HVSR Method to Strong Earthquake Data
- Keywords:
- horizontal-to-vertical spectral ratio(HVSR); strong earthquake observation; transfer function
- CLC:
- P315.91
- DOI:
- -
- Abstract:
- Firstly, using the measured data of 9 stations in the Japan KiK-net network and the strong earthquake observation records of several earthquakes, we discussed the assumption that ‘the horizontal-vertical spectral ratio of bedrock is 1' when HVSR method is applied to strong earthquake data. Secondly, on this basis, we calculated the differences between the TFH of the site horizontal transfer function by using different coefficients. Finally, the correlation coefficients of the TFH differences calculated by different formulas are analyzed. The results show that the horizontal-to-vertical spectral ratio in the bedrock revealed by the strong earthquake observation data is not necessarily 1, and can be regarded as a constant only in a certain frequency range. When the coefficient C which is used to estimate the difference of TFH with different formulas is taken as 1/(2αB/βB)1/2, the theoretically calculated horizontal transfer function is in good agreement with the actual observed horizontal transfer function. There is a certain weak correlation between HVSRB and(2αB/βB)1/2 in the frequency range considered.
- References:
- -
- Similar References:
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Last Update:
2019-12-15