Craifaleanu, Iolanda-Gabriela and Borcia, I. S. (2011): Instrumental intensity as a tool for post-earthquake damage assessment: validation for the strong Vrancea earthquakes of August 1986 and May 1990. Published in: Constructii , Vol. 11, No. 1 (2011): pp. 25-32.
Download (737kB) | Preview
The frequency-dependent spectrum based seismic intensity, also called instrumental intensity, is calculated basically from the integration of the square values of spectral acceleration ordinates. The values of the instrumental intensity are calibrated to match the values of the EMS-98 intensity scale, providing a promising analytical indicator for estimating the destructive potential of earthquakes. Previous studies have shown that the proposed index could be used as a basis for the development of a new improved seismic intensity scale. The paper presents a set of maps describing the spatial distribution of instrumental intensity ordinates for three seismic events recorded in 1986 and 1990. These events, generated by the Vrancea source, are the strongest earthquakes in Romania for which accelerographic data was recorded at multiple stations. Intensity maps were generated for separate significant frequency bands, in order to reveal the destructiveness of the considered earthquakes for different building categories. Results were compared and correlated with previous studies on Vrancea earthquakes and with information provided by building damage reports from the considered earthquakes.
|Item Type:||MPRA Paper|
|Original Title:||Instrumental intensity as a tool for post-earthquake damage assessment: validation for the strong Vrancea earthquakes of August 1986 and May 1990|
|Keywords:||spectrum based seismic intensity; Vrancea earthquakes; EMS-98 seismic intensity scale; seismic intensity maps|
|Subjects:||O - Economic Development, Technological Change, and Growth > O1 - Economic Development > O18 - Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure
L - Industrial Organization > L7 - Industry Studies: Primary Products and Construction > L74 - Construction
Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics > Q5 - Environmental Economics > Q54 - Climate; Natural Disasters; Global Warming
|Depositing User:||Iolanda Craifaleanu|
|Date Deposited:||03. Feb 2012 17:21|
|Last Modified:||15. Feb 2013 15:00|
Alcaz, V. (2006). Scientific - methodological bases of seismic hazard and risk evaluation of the territory of the Republic of Moldova. PhD Thesis (in Russian). Nat. Council for Accreditation and Attestation of the Rep. of Moldova, Chisinau.
Balan, St., Cristescu, V. and Cornea I. (coordinators) (1982). The Romania Earthquake of 4 March 1977 (in Romanian). Editura Academiei, Bucharest.
Berg, G. V., Bolt, B. A., Sozen, M. A., Rojahn, C. (1980). Earthquake in Romania, March 4, 1977: An engineering report. National Academy Press, Washington D.C.
Craifaleanu, I. G., Borcia, I. S. (2010). New Approaches in the Investigation of the Characteristics of Romanian Vrancea Earthquakes. Proceedings of the 14th European Conference on Earthquake Engineering, Ohrid, Macedonia, Aug. 30 – Sept. 3, Paper no. 737 (on CD-ROM).
Craifaleanu, I. G., Borcia, I. S. (2011). Deux approches différentes dans l’évaluation analytique du potentiel endommageant des tremblements de terre: application et validation pour les forts séismes de Vrancea, Roumanie. Proceedings of the 8th National Coloquium of the French Association of Earthquake Engineering, AFPS, Marne la Valée, France, Sept. 6-8 (to be published).
Crainic, L., Dalban, C., Postelnicu, T., Sandi, H., Teretean, T. (1992). A new approach of the Romanian seismic code for buildings, Proc. of the 10th Conf. on Earthquake Engineering, Madrid, Spain, 10: 5655-5660. Balkema, Rotterdam.
Cretu, D., Demetriu, S. (2006). Methods for the computation of seismic response in Romanian structural design codes. Comparisons and comments. Bulletin of AICPS (in Romanian), 3.
Grünthal, G. (Ed.) (1998). “European Macroseismic Scale 1998”. Cahiers du Centre Européen de Géodynamique et Séismologie, Luxembourg, Vol. 15.
Postelnicu, T., Chesca, B., Vacareanu, R., Popa, V., Lozinca, E., Cotofana, D., Stefanescu, B. (2004), Study on seismic design characteristics of existing buildings in Bucharest, Romania, National Center for Seismic Risk Reduction, MTCT, Bucharest, Romania, http://iisee.kenken.go.jp/net/saito/web_edes_b/romania1.pdf. Accessed April 2010.
Radu, C., Utale, A. and Winter, V. (1987) The August 30, 1986 Vrancea earthquake, Seismic intensity distribution, National Institute for Earth Physics Report, II, A-3.
Radu, C. and Utale, A. (1990). The May 30, 1990 Vrancea earthquake. Seismic intensity distribution. National Institute for Earth Physics Report, III, A-4.
Sandi, H. (1979). Measures of ground motion. Proc. 2nd US Natl. Conf. on Earthquake Engineering, Stanford Univ., USA.
Sandi, H. (1980). Refinements in characterizing ground motion. Proc. 7th WCEE, Istanbul, Turkey.
Sandi, H. (1987). Evaluation of seismic intensity based on instrumental data. Construcţii, 6 - 7, Bucharest (in Romanian).
Sandi, H. and Floricel, I. (1998). Some alternative instrumental measures of ground motion severity. Proc. 11th European Conference on Earthquake Engineering, Paris, France, September, 6-11.
Sandi, H., Borcia, I. S., Stancu, M. (2004). Analysis of attenuation for recent Vrancea intermediate depth earthquakes, Proc. 13th World Conf. on Earthquake Engineering, Vancouver, Canada, August 1-6, Paper No. 2477 (on CD-ROM).
Sandi, H. and Borcia, I. S. (2006). Damage Spectra and Intensity Spectra for Recent Vrancea Earthquakes. Proc. 1st European Conference on Earthquake Engineering and Seismology, Geneva, Switzerland, 3-8 September 2006, paper No. 574 (on CD-ROM).
Zaicenco, A., Lungu, D., Paskaleva, I., Ozcebe, G. (2004). Harmonization of Seismic Hazard and Risk Reduction in Countries Influenced by Vrancea Earthquakes. A SfP Project Plan submitted to the Programme for Security through Science, PDD, NATO SfP Proj. No. 980468.
MTCT (2002). GT 045-02: Guidelines for the technical assessment of buildings located in seismic zone A and for the development of rehabilitation measures. Buildings based on the standardised designs No. 944 and 1400, 4 storeys, precast R/C panels - IPCT (in Romanian), Construction Bulletin, 10/2004, Ed. INCERC Bucharest.
USGS. Significant Earthquakes of the World, 1986. http://earthquake.usgs.gov/earthquakes/eqarchives/significant/sig_1986.php.
USGS. Significant Earthquakes of the World, 1990. http://earthquake.usgs.gov/earthquakes/eqarchives/significant/sig_1990.php.