Fore-Arc and Back-Arc Ground Motion Prediction Model for Vrancea Intermediate Depth Seismic Source

Vǎcǎreanu, Radu; Rădulian, Mircea; Iancovici, Mihail; Pavel, Florin; Neagu, Cristian

doi:10.1080/13632469.2014.990653

Cited by 64 publications

(51 citation statements)

References 65 publications

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“…The ground motion prediction equation (GMPE) used in the sensitivity analysis is the one developed for Vrancea subcrustal source by Vacareanu et al (2014b). In the present sensitivity analysis the GMPE is applied for the geometric mean of the two orthogonal horizontal components of peak ground acceleration (PGA).…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…The results show again that the YEA97 GMPE is graded better than the ZEA06 GMPE. In this study, the four GMPEs recommended in SHARE project are re-evaluated and, in addition, the ground motion prediction model of Vacareanu et al (2014b)-VEA14-is also tested. The grading is performed using some of the goodness-of-fit parameters given in (Scherbaum et al 2004(Scherbaum et al , 2009Delavaud et al 2012); moreover, the testing procedure of Kale and Akkar (2013) is employed, as well.…”

Section: Evaluation Of the Gmpesmentioning

confidence: 99%

“…Besides these GMPEs, the ground motion prediction model proposed in Vacareanu et al (2014b), named VEA14, for intermediate-depth earthquakes and average soil conditions, is used for the analysis of the seismic hazard of Romania. The GMPEs are applied with different weights in the fore-arc region of Romania (to the east and to the south with respect to the Carpathians Mountains) and in the back-arc region (to the north and to the west with respect to the Carpathians Mountains).…”

Section: Gmpes Used In the Pshamentioning

confidence: 99%

See 2 more Smart Citations

Probabilistic Seismic Hazard Assessment for Romania

Vǎcǎreanu

Aldea

Lungu

et al. 2015

Earthquakes and Their Impact on Society

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Section: Sensitivity Analysismentioning

confidence: 99%

Section: Evaluation Of the Gmpesmentioning

confidence: 99%

Section: Gmpes Used In the Pshamentioning

confidence: 99%

See 1 more Smart Citation

Probabilistic Seismic Hazard Assessment for Romania

Vǎcǎreanu

Aldea

Lungu

et al. 2015

Earthquakes and Their Impact on Society

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“…This method of simulating ground motions was recently evaluated by Pavel (2015) using strong ground motions recorded in Bucharest area during three intermediate-depth Vrancea earthquakes from 1986 and 1990. In addition, the recently developed ground motion model of Vacareanu et al (2015) is also used in the same purpose.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the ground motion levels for the Vrancea (Romania) November 1940 earthquake

Pavel

Vǎcǎreanu

2015

Nat Hazards

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This short paper focuses on the evaluation of the ground motions levels likely experienced in ten cities seriously damaged during the November 1940 intermediate-depth Vrancea (Romania) earthquake (M W = 7.7). In the first step of the analysis, the ground motion levels are evaluated using a recently developed ground motion model (Vacareanu et al. in J Earthq Eng 19 (3):535-562, 2015) for the Vrancea intermediate-depth seismic source. Next, the stochastic method of simulation (Boore in Pure App Geophys 160: 2003) is employed in the same purpose. In order to include the nonlinear soil effects into the results of the stochastic simulations, a dedicated amplification function is derived from the ground motions recorded during two large magnitude Vrancea earthquakes in 1986 and 1990. The results obtained for the November 1940 Vrancea earthquake show that the largest spectral ordinates are obtained when the nonlinear soil effects are taken into consideration, while the peak ground accelerations are in almost all cases in excess of 0.15 g. In addition, the results for Bucharest are validated through a site-specific response analysis performed using a soil profile from the literature. This site response analysis for the 1940 seismic event reveals long-period spectral amplitudes, similar to the ones observed in Bucharest during the Vrancea 1977 earthquake.

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“…This seismic catalogue includes 1051 individual seismic events with M W C 7.0, and an additional 440 seismic events with M W C 7.5. Subsequently, the ground motion amplitudes were obtained from the ground motion model of Vacareanu et al (2015), also taking into account the inter-and intra-event variability.…”

Section: Evaluation Of Seismic Lossesmentioning

confidence: 99%

Life-Cycle and Seismic Fragility Assessment of Code-Conforming Reinforced Concrete and Steel Structures in Bucharest, Romania

Pavel

Calotescu

Stănescu

et al. 2018

Int J Disaster Risk Sci

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In this article, the fragility of reinforced concrete and steel structures in Bucharest, a city of high seismic hazard, designed using the recent building codes in Romania, is assessed. A total of 24 reinforced concrete and steel structures with heights varying from five stories to 13 stories were analyzed. Their seismic fragility was evaluated using two procedures from the literature. In the first procedure (SPO2FRAG), the fragility was derived based on the pushover curves using the SPO2IDA algorithm, while in the second procedure (FRACAS), the fragility was derived from nonlinear time-history analyses. The analyzed structures were designed for three levels of peak ground accelerations, corresponding to mean return periods of 100, 225, and 475 years. Subsequently, the damage assessment of the analyzed structures was performed using ground motions generated from a Monte-Carlo simulated earthquake catalogue for the Vrancea intermediate-depth seismic source. The damage degrees that were estimated using the SPO2FRAG approach are higher than those estimated using the FRACAS approach. The life-cycle analysis of the structures shows that a further increase of the design peak ground acceleration for Bucharest is feasible from an economic point of view using the SPO2FRAG results. However, based on the FRACAS results, the opposite conclusion can be drawn. Finally, generic lognormal fragility functions are proposed as a function of building height and structural system.

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Fore-Arc and Back-Arc Ground Motion Prediction Model for Vrancea Intermediate Depth Seismic Source

Cited by 64 publications

References 65 publications

Probabilistic Seismic Hazard Assessment for Romania

Probabilistic Seismic Hazard Assessment for Romania

Assessment of the ground motion levels for the Vrancea (Romania) November 1940 earthquake

Life-Cycle and Seismic Fragility Assessment of Code-Conforming Reinforced Concrete and Steel Structures in Bucharest, Romania

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