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http://dx.doi.org/10.5000/EESK.2011.15.5.035

Analysis of the Spectrum Intensity Scale for Inelastic Seismic Response Evaluation  

Park, Kyung-Rock (대창이엔지(주) 기술연구소)
Jeon, Bub-Gyu (부산대학교 사회환경시스템공학과)
Kim, Nam-Sik (부산대학교 사회환경시스템공학부)
Seo, Ju-Won (현대건설 연구개발본부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.15, no.5, 2011 , pp. 35-44 More about this Journal
Abstract
PGA (Peak Ground Acceleration) is the parameter which indicates the peak value for strong ground motion and is mainly due to the intensity of the seismic wave. Usually, seismic waves can consist of different characteristics and can have different effects on structures. Therefore, it may be undesirable that the effects of a seismic wave are evaluated only based on the PGA. In this study, time history analysis was executed with a single degree of freedom model for inelastic seismic analysis. The numerical model was assumed to be a perfect elasto-plastic model. Input accelerations were made with El Centro NS (1940), other earthquake records and artificial earthquakes. The displacement ductility demand and cumulative dissipated energy, which were calculated from other artificial earthquakes, were compared. As a result, different responses from other seismic waves which have the same PGA were identified. Therefore, an index which could reflect both seismic and structural characteristics is needed. The SI (Spectrum Intensity) scale which could be obtained from integration by parts of the velocity response spectrum could be an index reflecting the inelastic seismic response of structures. It can be possible to identify from correlation analysis among the SI scale, displacement ductility demand and cumulative dissipated energy that the SI scale is sufficient to be an index for the inelastic response of structures under seismic conditions.
Keywords
Spectrum Intensity scale; PGA scale; Strong Ground Motion; Inelastic seismic response; Artificial earthquake;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 김남식, 김재민, 이계희, 강형택, "지진격리교량의 지진해석을 위한 인공지진파의 작성," 한국지진공학회 춘계학술발표회 논문집, 487-494, 2005.   과학기술학회마을
2 ASCE Standard, Seismic Analysis of Safety-Related Nuclear Structures and Commentary, ASCE, 4-98, 1999.
3 Housner, G.W., "Measures of severity of earthquake ground shaking," Proceedings of U.S. National Conference on Earthquake Engineering, 25-34, 1975.
4 Kappos, A.J., "Sensitivity of calculated inelastic seismic response to input motion characteristics," Proceedings of Fourth U.S. National Conference on Earthquake Engineering, Vol.2, 25-34, 1990.
5 Nau, J.M. and Hall, W.J., "Scaling methods for earthquake response spectra," Journal of Structural Engineering, ASCE, Vol.110, No.7, 1533-1548, 1984.   DOI   ScienceOn
6 Paz, M., Structural Dynamics, Kluwer Academic Publishers, 2004.
7 Rodriguez, M., "A measure of the capacity of earthquake ground motions to damage structures," Earthquake Engineering &Structural Dynamics, Vol. 23, No. 6, 627-643, 1994.   DOI   ScienceOn
8 한국도로교통협회, 도로교설계기준, 건설교통부, 2010.
9 대한토목학회, 도로교설계기준 해설, 기문당, 2008.
10 Matsumura, K., "On the intensity measure of strong motions related to structural failures," Proceedings of Tenth World Conference Earthquake Engineering, Vol. 1, 375-380, 1992.
11 Tso, W.K., Zhu, T.J., and Heidebrecht, A.C., "Engineering implication of ground motion A/V ratio," Soil Dynamics and Earthquake Engineering, Vol. 11, No. 3, 133-134, 1992.   DOI   ScienceOn
12 Ueong, Y.S., "A study on feasibility of SI for identification of earthquake damages in Taiwan," Soil Dynamics and Earthquake Engineering, Vol. 29, No. 1, 185-193, 2009.   DOI   ScienceOn
13 Housner, G.W., "Spectrum intensities of strong motion earthquakes," Proceedings of Symposium on Earthquake and Blunt Effects on Structures, EERI, 1952.
14 Martinez-Rueda, J.E., "Scaling procedure for natural accelerograms based on a system of spectrum intensity scales," Earthquake Spectra, Vol. 14, No. 1, 135-152, 1998.   DOI   ScienceOn
15 박종관, "지표면 스펙트럼 강도를 통한 지반의 액상화 평가에 대한 연구," 한국지반공학회 논문집, 제14권, 제2호, 9-19, 1998.   과학기술학회마을