Seismic Fragility Assessment of Base-Isolated Nuclear Power Plant Structures
Received: 25 October 2024 | Revised: 9 November 2024 | Accepted: 18 November 2024 | Online: 26 November 2024
Corresponding author: Duy-Duan Nguyen
Abstract
Base isolators constitute solutions for improving the seismic performance of civil and nuclear engineering structures. This paper evaluates the seismic fragility of based-isolated nuclear power plant structures using the proposed fragility curves. A finite element model of the structures is developed deploying SAP2000, a structural analysis program. For constructing fragility curves, a set of ground motions is employed to perform nonlinear time-history analyses associated with Incremental Dynamic Analyses (IDA). Three Damage States (DS) are defined based on the shear deformation of base isolators. Finally, the maximum likelihood estimation technique generates a set of fragility curves for DS. Additionally, a comparison of fragility curves between IDA and Cloud Analysis (CA) is presented.
Keywords:
nuclear power plant, fragility curves, earthquake, base isolator, DSDownloads
References
S. Eem and D. Hahm, "Large strain nonlinear model of lead rubber bearings for beyond design basis earthquakes," Nuclear Engineering and Technology, vol. 51, no. 2, pp. 600–606, Apr. 2019.
J.-H. Lee and J.-K. Song, "Seismic Fragility Analysis of Seismically Isolated Nuclear Power Plant Structures using Equivalent Linear- and Bilinear-Lead Rubber Bearing Model," Journal of the Earthquake Engineering Society of Korea, vol. 19, no. 5, pp. 207–217, 2015.
J.-S. Kim, J. P. Jung, J.-H. Moon, T.-H. Lee, J. H. Kim, and T.-S. Han, "Seismic Fragility Analysis of Base-Isolated LNG Storage Tank for Selecting Optimum Friction Material of Friction Pendulum System," Journal of Earthquake and Tsunami, vol. 13, no. 2, Jun. 2019, Art. no. 1950010.
Y.-S. Choun, J. Park, and I.-K. Choi, "Effects of Mechanical Property Variability in Lead Rubber Bearings on the Response of Seismic Isolation System for Different Ground Motions," Nuclear Engineering and Technology, vol. 46, no. 5, pp. 605–618, Oct. 2014.
A. S. Whittaker, M. Kumar, and M. Kumar, "Seismic Isolation of Nuclear Power Plants," Nuclear Engineering and Technology, vol. 46, no. 5, pp. 569–580, Oct. 2014.
A. S. Whittaker, P. Sollogoub, and M. K. Kim, "Seismic isolation of nuclear power plants: Past, present and future," Nuclear Engineering and Design, vol. 338, pp. 290–299, Nov. 2018.
J.-W. Jung, H. W. Jang, J. H. Kim, and J.-W. Hong, "Effect of second hardening on floor response spectrum of a base-isolated nuclear power plant," Nuclear Engineering and Design, vol. 322, pp. 138–147, Oct. 2017.
J. H. Lee and J.-K. Song, "Comparison of Seismic Responses of Seismically Isolated NPP Containment Structures using Equivalent Linear- and Nonlinear-Lead-Rubber Bearing Modeling," Journal of the Earthquake Engineering Society of Korea, vol. 19, no. 1, pp. 1–11, Jan. 2015.
S. G. Cho, S. M. Yun, D. Kim, and K. J. Hoo, "Analyses of Vertical Seismic Responses of Seismically Isolated Nuclear Power Plant Structures Supported by Lead Rubber Bearings," Journal of the Earthquake Engineering Society of Korea, vol. 19, no. 3, pp. 133–143, May 2015.
J. Wong and S. Mahin, "Preliminary Analysis of Floor Response Spectra of a Seismically Base Isolated Nuclear Power Plant," presented at the Structural Mechanics in Reactor Technology (SMiRT-22), USA, 2013.
D. D. Nguyen and C. N. Nguyen, "Seismic Responses of NPP Structures Considering the Effects of Lead Rubber Bearing," Engineering, Technology & Applied Science Research, vol. 10, no. 6, pp. 6500–6503, Dec. 2020.
M. M. Rahman, T. T. Nahar, D. Kim, and D.-W. Park, "Seismic performance evaluation of base-isolated nuclear power plant reactor building considering aging effect of isolation device," Journal of Nuclear Science and Technology, vol. 59, no. 12, pp. 1465–1477, Dec. 2022.
Regulatory Guide 1.60: Design Response Spectra for Seismic Design of Nuclear Power Plants. USA: U.S. Nuclear Regulatory Commission Office of Nuclear Regulatory Research, 2014.
G.-J. Kim, K.-K. Yang, B.-S. Kim, H.-J. Kim, S.-J. Yun, and J.-K. Song, "Seismic Response Evaluation of Seismically Isolated Nuclear Power Plant Structure Subjected to Gyeong-Ju Earthquake," Journal of the Earthquake Engineering Society of Korea, vol. 20, no. 7_spc, pp. 453–460, Dec. 2016.
S. Yabana, K. Kanazawa, S. Nagata, S. Kitamura, and T. Sano, "Shaking Table Tests With Large Test Specimens of Seismically Isolated FBR Plants: Part 3—Ultimate Behavior of Upper Structure and Rubber Bearings," presented at the ASME 2009 Pressure Vessels and Piping Conference, Jul. 2010, pp. 179–187.
A. Ali, N. A. Hayah, D. Kim, and S. G. Cho, "Probabilistic Seismic Assessment of Base-Isolated NPPs Subjected to Strong Ground Motions of Tohoku Earthquake," Nuclear Engineering and Technology, vol. 46, no. 5, pp. 699–706, Oct. 2014.
J. Zhang and Y. Huo, "Optimum isolation design for highway bridges using fragility function method," presented at the 14th World Conference on Earthquake Engineering (WCEE), China, 2008.
V. B. Tran, S. M. Nguyen, T. H. Nguyen, V. H. Nguyen, T. T. H. Doan, and D. D. Nguyen, "The Influence of Near- and Far-field Earthquakes on the Seismic Performance of Base-Isolated Nuclear Power Plant Structures," Engineering, Technology & Applied Science Research, vol. 12, no. 5, pp. 9092–9096, Oct. 2022.
M. Shinozuka, M. Q. Feng, J. Lee, and T. Naganuma, "Statistical Analysis of Fragility Curves," Journal of Engineering Mechanics, vol. 126, no. 12, pp. 1224–1231, Dec. 2000.
F. Lemsara, T. Bouzid, D. Yahiaoui, B. Mamen, and M. Saadi, "Seismic Fragility of a Single Pillar-Column Under Near and Far Fault Soil Motion with Consideration of Soil-Pile Interaction," Engineering, Technology & Applied Science Research, vol. 13, no. 1, pp. 9819–9824, Feb. 2023.
C. A. Cornell, F. Jalayer, R. O. Hamburger, and D. A. Foutch, "Probabilistic Basis for 2000 SAC Federal Emergency Management Agency Steel Moment Frame Guidelines," Journal of Structural Engineering, vol. 128, no. 4, pp. 526–533, Apr. 2002.
Downloads
How to Cite
License
Copyright (c) 2024 Trong-Ha Nguyen, Duy-Duan Nguyen
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in ETASR with an acknowledgement of its initial publication in this journal.
