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Determination of seismic site classification of seismic recording stations in the Himalayan region using HVSR method
Abstract An attempt has been made to classify seismic stations installed along the Himalayan belt and in adjoining regions using recorded strong-motion data and different empirical methods. For all recorded data, HVSRs (horizontal-to-vertical spectral ratios) were computed using pseudo-response spectral acceleration (PSA) values. Five empirical techniques based on HVSRs and PSA were used to classify the stations. The first and second methods are based on the predominant period of the site and relationship between and parameters of HVSR. The third and fourth methods compute the correlation between the HVSR curve of a station and standard HVSR curves. Fifth used the PSA and PGA (peak ground acceleration) to identify the site as rock and soil. Conclusively, the site class which had the highest frequency of occurrence amongst the five methods was determined to be the final class for a given station. The final site class recommended is matched with the existing available site classification and also with available field test results.
Highlights Classification of seismic stations in the Himalayan and adjoining region. HVSR for each seismic station is derived. Five empirical techniques are used for classifying stations. Final classification is compared with field test and available results.
Determination of seismic site classification of seismic recording stations in the Himalayan region using HVSR method
Abstract An attempt has been made to classify seismic stations installed along the Himalayan belt and in adjoining regions using recorded strong-motion data and different empirical methods. For all recorded data, HVSRs (horizontal-to-vertical spectral ratios) were computed using pseudo-response spectral acceleration (PSA) values. Five empirical techniques based on HVSRs and PSA were used to classify the stations. The first and second methods are based on the predominant period of the site and relationship between and parameters of HVSR. The third and fourth methods compute the correlation between the HVSR curve of a station and standard HVSR curves. Fifth used the PSA and PGA (peak ground acceleration) to identify the site as rock and soil. Conclusively, the site class which had the highest frequency of occurrence amongst the five methods was determined to be the final class for a given station. The final site class recommended is matched with the existing available site classification and also with available field test results.
Highlights Classification of seismic stations in the Himalayan and adjoining region. HVSR for each seismic station is derived. Five empirical techniques are used for classifying stations. Final classification is compared with field test and available results.
Determination of seismic site classification of seismic recording stations in the Himalayan region using HVSR method
Anbazhagan, P. (Autor:in) / Srilakshmi, K.N. (Autor:in) / Bajaj, Ketan (Autor:in) / Moustafa, Sayed S.R. (Autor:in) / Al-Arifi, Nassir S.N. (Autor:in)
Soil Dynamics and Earthquake Engineering ; 116 ; 304-316
15.10.2018
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2019
| British Library Online Contents | 2019
| British Library Online Contents | 2019
Seismic site classification based on constrained modeling of measured HVSR curve in regolith sites
| British Library Online Contents | 2018