지진 재해도의 닫힌 근사식 제안에 관한 연구
A Study to Propose Closed-form Approximations of Seismic Hazard
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초록
In this paper, we address some issues in existing seismic hazard closed-form equations and present a novel seismic hazard equation form to overcome these issues. The presented equation form is based on higher-order polynomials, which can well describe the seismic hazard information with relatively high non-linearity. The accuracy of the proposed form is illustrated not only in the seismic hazard data itself but also in estimating the annual probability of failure (APF) of the structural systems. For this purpose, the information on seismic hazard is used in representative areas of the United States (West:Los Angeles, Central:Memphis and Kansas, East:Charleston). Examples regarding the APF estimation are the analyses of existing platform structure and nuclear power plant problems. As a result of the numerical example analyses, it is confirmed that the higher-order-polynomial-based hazard form presented in this paper could predict the APF values of the two example structure systems as well as the given seismic hazard data relatively accurately compared with the existing closed-form hazard equations. Therefore, in the future, it is expected that we can derive a new improved APF function by combining the proposed hazard formula with the existing fragility equation.
Abstract
In this paper, we address some issues in existing seismic hazard closed-form equations and present a novel seismic hazard equation form to overcome these issues. The presented equation form is based on higher-order polynomials, which can well describe the seismic hazard information with relatively high non-linearity. The accuracy of the proposed form is illustrated not only in the seismic hazard data itself but also in estimating the annual probability of failure (APF) of the structural systems. For this purpose, the information on seismic hazard is used in representative areas of the United States (West:Los Angeles, Central:Memphis and Kansas, East:Charleston). Examples regarding the APF estimation are the analyses of existing platform structure and nuclear power plant problems. As a result of the numerical example analyses, it is confirmed that the higher-order-polynomial-based hazard form presented in this paper could predict the APF values of the two example structure systems as well as the given seismic hazard data relatively accurately compared with the existing closed-form hazard equations. Therefore, in the future, it is expected that we can derive a new improved APF function by combining the proposed hazard formula with the existing fragility equation.
참고문헌 (14)
- ASCE, "Seismic analysis of safety-related nuclear structures and commentary (ASCE", SEI 4-16), 2016
- Cornell CA, "Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guidelines", Journal of Structural Engineering, 128(4), pp.526~533 (2002)[DOI]
- ASCE, "Seismic design criteria for structures, systems, and compo- nents in nuclear facilities (ASCE 43-05)", American Society of Civil Engineer, ~ (2005)
- 곽신영, "Robust Design of Seismic Isolation System using Constrained Multi-objective Optimization Technique", KSCE Journal of Civil Engineering, 17(5), pp.1051~1063 (2013), 대한토목학회[DOI]
- Kwag S, "Bayesian network technique in probabilistic risk assessment for multiple hazards", Proceedings of 24th International Conference on Nuclear Engineering (ICONE 24) (2016)
- Kwag S, "Probabilistic risk assessment framework for stru- ctural systems under multiple hazards using Bayesian statistics", Nuclear Engineering and Design, 315, pp.20~34 (2017)[DOI]
- Kwag S, "Bayesian-based seismic margin assessment approach: application to research reactor system", Earthquakes and Structures, 12(6), pp.653~663 (2017)
- Kwag S, "Application of Bayesian statistics to seismic probabilistic safety assessment for research reactor", Nuclear Engineering and Design, 328, pp.166~181 (2018)[DOI]
- Bradley BA, "Improved seismic hazard model with application to probabilistic seismic demand analysis", Earthquake Engineering & Structural Dynamics, 36(14), pp.2211~2225 (2007)[DOI]
- Vamvatsikos D, "Derivation of new SAC", FEMA performance evalua- tion solutions with second?order hazard approximation, 2013, pp.42(8), 1171~1188
- Kumar R, "Second-order Logarithmic formulation for hazard curves and closed-form approximation to annual failure probability", Structural Safety, 45, pp.18~23 (2013)[DOI]
- Kennedy RP, "Probabilistic seismic safety study of an existing nuclear power plant", Nuclear Engineering and Design, 59(2), pp.315~338 (1980)[DOI]
- Kwag S, "Probabilistic risk assessment based model validation method using Bayesian network", Reliability Engineering and System Safety, 169, pp.380~393 (2018)[DOI]
- Kwag S, "Development of system design and seismic performance evaluation for reactor pool working platform of a research reactor", Nuclear Engineering and Design, 266, pp.199~213 (2014)[DOI]