Site condition investigation using horizontal to vertical spectral ratios of Iran strong motion data

• Autorzy: Eshaghi Attieh , Hassani Behzad , Shahvar Mohammad Pourmohammad , Farzanegan Esmail

Identyfikatory

DOI

10.1007/s11600-023-01091-8

• Języki publikacji: EN

Abstrakty

EN

In this study, horizontal to vertical spectral ratios (HVSR) have been calculated for strong ground motion data recorded by the Iran Strong Motion Network (ISMN). Then, a uniform and specific procedure is applied for selecting the peak amplitude (A_peak) and peak frequency (ƒ_peak) of the average HVSR for each station in the database. Based on this procedure, A_peak and ƒ_peak values were estimated at 502 stations of ISMN. Also, the relationships between HVSR parameters and time-averaged shear wave velocity in the upper 30 m (V_S30) have been investigated and these relationships are presented for Iran. The results and uncertainties of these models are compared with other related studies conducted in Japan, North and Central America, as well as previous studies for Iran. Compared to other datasets, the V_S30 model presented for Iran shows the highest V_S30 values among all models. The equation developed in this study can be used to estimate V_S30 at ISMN stations where there is no other site characteristics available. Therefore, the soil type can be classified according to the Standard No. 2800, which is useful in seismic design codes and other related studies.

Słowa kluczowe

EN

horizontal to vertical spectral ratios; HVSR; time-averaged shear wave velocity of top 30 m (VS30); site amplification; site fundamental frequency; strong motion data

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2023
• Tom: Vol. 71, no. 5
• Strony: 2049--2064
• Opis fizyczny: Bibliogr. 45 poz., rys., tab.

Twórcy

autor

Eshaghi Attieh

• Road, Housing and Urban Development Research Center, Tehran, Iran

• https://orcid.org/0000-0002-0583-5854

autor

Hassani Behzad

• BC Hydro, Burnaby, BC, Canada

autor

Shahvar Mohammad Pourmohammad

• Road, Housing and Urban Development Research Center, Tehran, Iran

autor

Farzanegan Esmail

• Road, Housing and Urban Development Research Center, Tehran, Iran

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).