Site dependent response spectra and analysis of the characteristics of the strong ground motion due to the 1999 Duzce earthquake in Turkey

Bakır, Pelin Gündeş; Roeck, Guido De; Degrande, Geert; Wong, Kevin K. F.

doi:10.1016/j.engstruct.2006.09.022

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…This spectral amplification coefficient is determined from the response spectrum or normalized response spectrum curve of bedrock seismic motion at sites S A and S B (Figure 13). The normalized response spectrum can be interpreted as amplification factor of response and is obtained by dividing the pseudo spectral acceleration by peak ground acceleration (PGA) (Bakir et al, 2007). The ratio between spectral amplification coefficients of sites S A and S B is equal to 1.83 which is in good agreement with the ratio between recorded free field motions.…”

Section: Discussionsupporting

confidence: 58%

Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records

Harichane

Afra²,

Bahar

2012

International Journal of Geotechnical Earthquake Engineering

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In this paper, a new approach for soil profile characterization is validated. The soil characteristics are calculated by fitting the theoretical amplification functions to those obtained experimentally. The identified characteristics have been observed to agree well with those obtained by in situ and laboratory tests. This new approach uses system identification theory and free field records. It is based on formulation of theoretical soil amplification function for two sites in terms of the different parameters of the soil profile layers (thickness, damping ratio, shear wave velocity and unit weight). The theoretical function is smoothed according to the experimental data (spectral ratios) by means of the least squares minimization technique. The function parameters are determined by solving, numerically, a non linear optimization problem. In this approach, soil profile characteristics of two sites can be identified simultaneously, from only a single soil acceleration record at free surface of each site without need of bedrock or outcropping acceleration records. Strong ground motions data recorded during the Boumerdes earthquake (Algeria) of May 21, 2003, are used for the validation.

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Section: Discussionsupporting

confidence: 58%

Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records

Harichane

Afra²,

Bahar

2012

International Journal of Geotechnical Earthquake Engineering

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“…Normalized response spectra of each component of the two stations were computed for various damping ratio (2, 5 and 10%). These normalized response spectra can be interpreted as amplification factors of response and are obtained by dividing the pseudo spectral acceleration (PSA), pseudo spectral velocity (PSV) and spectral displacement (SD) by PGA, PGV and PGD, respectively (Bakir et al, 2007).…”

Section: Effect Of Damping Ratio On Response Spectramentioning

confidence: 99%

A Case Study of Accelerometric Records Analysis of May 21st, 2003, Boumerdes (Algeria) Earthquake

Khellafi

Harichane

Afra³

et al. 2013

International Journal of Geotechnical Earthquake Engineering

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On May 21st, 2003, the north Algeria was stricken by a 6.8 magnitude earthquake which was felt over a distance of 250 km from the epicenter, which is localized in Mediterranean Sea at 10 km from the coast. During this event, several ground accelerations were recorded by the instrumentation network of the National Center of Applied Research in Earthquake Engineering (CGS). The records analysis revealed an important difference in peak ground acceleration (PGA) between two close stations (0.58g and 0.33g, respectively, in East-West direction) at about 20 km from the earthquake epicenter. Also, two other record stations, located in the Mitidja basin, at about 29 km and 86 km from the earthquake epicenter, respectively, showed a high level of acceleration: PGAs of 0.54g and 0.16g. So, the authors attempt in this paper to analyze these records through the characteristics of strong ground motions, the effects of different parameters such as damping ratios, soil conditions and epicentral distance on normalized response spectra. Also, the quantification of site effects during this earthquake is analyzed. Then, the authors compare the near-field mean response spectra obtained during this earthquake with the Algerian seismic design spectra (RPA99 – 2003 version) and with two other well-known design spectra: Eurocode 8 and UBC97 in order to contribute to the future revision of RPA99.

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The strong ground motion and structural response analysis of 06 February 2023 Pazarcık and Elbistan earthquakes (Mw 7.7 and 7.6): a Case study for Malatya-Türkiye, Eastern Anatolia

Bayrak,

Çelebi,

Kılıç

et al. 2024

Bull Earthquake Eng

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Site dependent response spectra and analysis of the characteristics of the strong ground motion due to the 1999 Duzce earthquake in Turkey

Cited by 6 publications

References 31 publications

Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records

Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records

A Case Study of Accelerometric Records Analysis of May 21st, 2003, Boumerdes (Algeria) Earthquake

The strong ground motion and structural response analysis of 06 February 2023 Pazarcık and Elbistan earthquakes (Mw 7.7 and 7.6): a Case study for Malatya-Türkiye, Eastern Anatolia

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