Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study to Propose Closed-form Approximations of Seismic Hazard

지진 재해도의 닫힌 근사식 제안에 관한 연구

  • Kwag, Shinyoung (Research Reactor System Engineering Team, Korea Atomic Energy Research Institute) ;
  • Hahm, Daegi (Structural and Seismic Safety Research Team, Korea Atomic Energy Research Institute)
  • 곽신영 (한국원자력연구원 연구로설계종합실) ;
  • 함대기 (한국원자력연구원 구조지진안전연구실)
  • Received : 2017.12.15
  • Accepted : 2018.04.20
  • Published : 2018.05.01
Download PDF
⟨ Previous Next ⟩

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.

Keywords

References

  1. ASCE. Seismic analysis of safety-related nuclear structures and commentary (ASCE/SEI 4-16). American Society of Civil Engineer, Reston, Virginia, c2016.
  2. Cornell CA, Jalayer F, Hamburger RO, Foutch DA. Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guidelines. Journal of Structural Engineering. 2002 April; 128 (4):526-533. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:4(526)
  3. ASCE. Seismic design criteria for structures, systems, and compo- nents in nuclear facilities (ASCE 43-05). American Society of Civil Engineer, Reston, Virginia, c2005.
  4. Kwag S, Ok S-Y. Robust design of seismic isolation system using con- strained multi-objective optimization technique. KSCE Journal of Civil Engineering. 2013 July;17(5):1051-1063. https://doi.org/10.1007/s12205-013-0334-9
  5. Kwag S, Gupta A. Bayesian network technique in probabilistic risk assessment for multiple hazards. Proceedings of 24th International Conference on Nuclear Engineering (ICONE 24); 2016 June 26-30; Charlotte, NC, US.
  6. Kwag S, Gupta, A. Probabilistic risk assessment framework for stru- ctural systems under multiple hazards using Bayesian statistics. Nuclear Engineering and Design. 2017 April;315:20-34. https://doi.org/10.1016/j.nucengdes.2017.02.009
  7. Kwag S, Oh J, Lee JM, Ryu JS. Bayesian-based seismic margin assessment approach: application to research reactor system. Earthquakes and Structures. 2017 June;12(6):653-663. https://doi.org/10.12989/EAS.2017.12.6.653
  8. Kwag S, Oh J, Lee JM. Application of Bayesian statistics to seismic probabilistic safety assessment for research reactor. Nuclear Engineering and Design. 2018 March;328:166-181. https://doi.org/10.1016/j.nucengdes.2018.01.022
  9. Bradley BA, Dhakal RP, Cubrinovski M, Mander JB, MacRae GA. Improved seismic hazard model with application to probabilistic seismic demand analysis. Earthquake Engineering & Structural Dynamics. 2007 Nov.;36(14):2211-2225. https://doi.org/10.1002/eqe.727
  10. Vamvatsikos D. Derivation of new SAC/FEMA performance evalua- tion solutions with second?order hazard approximation. Earthquake Engineering & Structural Dynamics. 2013 July;42(8):1171-1188. https://doi.org/10.1002/eqe.2265
  11. Kumar R, Gardoni P. Second-order Logarithmic formulation for hazard curves and closed-form approximation to annual failure probability. Structural Safety. 2013 Nov.;45:18-23. https://doi.org/10.1016/j.strusafe.2013.07.007
  12. Kennedy RP, Cornell CA, Campbell RD, Kaplan S, Perla HF. Probabilistic seismic safety study of an existing nuclear power plant. Nuclear Engineering and Design. 1980 Aug.;59(2):315-338. https://doi.org/10.1016/0029-5493(80)90203-4
  13. Kwag S, Gupta, A, Dinh N. Probabilistic risk assessment based model validation method using Bayesian network. Reliability Engineering and System Safety. 2018 Jan.;169:380-393. https://doi.org/10.1016/j.ress.2017.09.013
  14. Kwag S, Lee JM, Oh J, Ryu JS. Development of system design and seismic performance evaluation for reactor pool working platform of a research reactor. Nuclear Engineering and Design. 2014 Jan.; 266:199-213. https://doi.org/10.1016/j.nucengdes.2013.10.025