Seismic fragility analysis of an AP1000 shield building considering the fluid-structure interaction of a passive gravity water box&nbsp;&nbsp;

PDF(1963 KB)

Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (4) : 144-150.

Seismic fragility analysis of an AP1000 shield building considering the fluid-structure interaction of a passive gravity water box

LI Jing, CHEN Jianyun, XU Qiang, QU Yaqing

Author information +

History +

Abstract

:Non-active cooling system plays an important role in improving the security of an AP1000 nuclear power plant.But the fluid-structure interaction in gravity water box has great effects on the earthquake response of a NI shield building.In this paper,the seismic fragility analysis of a NI shield building with different water levels in a gravity water box were performed based on the ALE fluid-structure coupling algorithm and the effects of different water height on seismic fragility curves were compared.The seismic fragility curves were also obtained for proposed four kinds of baffle design schemes and the effects on seismic fragility curves were analyzed.The results show that,when there is no water in the gravity water box,the fragility of the NI shield is the highest; and the next is in the condition of normal water level which could guarantee water supply for 72 hours.NI shield buildings possess the lowest fragility when water level is 2/3 of normal water level; and the setting form of the baffles also has great effects on the fragility of the shield building.

Key words

AP1000 nuclear plant / shield building / seismic fragility / passive safety gravity water tank / fluid-structure interaction analysis

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LI Jing, CHEN Jianyun, XU Qiang, QU Yaqing. Seismic fragility analysis of an AP1000 shield building considering the fluid-structure interaction of a passive gravity water box [J]. Journal of Vibration and Shock, 2019, 38(4): 144-150

References

[1] 毛庆, 吴应喜, 张健等. 福岛核事故后中国广东核电集团核电厂抗震设计和评估进展[J]. 中国工程科学, 2013, 15(4): 46-51.
    MAO Qing, WU Yingxi, ZHANG Jian etal. The development on seismic design and evaluation of CGNPC after Fukushima accident[J]. Engineering Science, 2013, 15(4): 46-51.
[2] 林皋. 核电工程结构抗震设计研究综述I[J]. 人民长江, 2011, 42(19): 1-6.
    LIN Gao. Review on seismic structure design of nuclear power plant[J]. Yangtze River, 2011, 42(19): 1-6.
[3] AQUELET N., SOULI M., GABRYS J., et al. A new ALE formulation for sloshing analysis [J]. Structural Engineering and Mechanics, 2003, 16(4): 423-440.
[4] SOULI M., ZOLESIO J.P.. Arbitrary Lagrangian-Eulerian and free surface methods in fluid mechanics [J]. Computer Methods in Applied Mechanics and Engineering, 2001, 191(3-5): 451-466.
[5] ZHANG A., SUZUKI K.. A comparative study of numerical simulations for fluid-structure interaction of liquid-filled tank during ship collision [J]. Ocean Engineering, 2007, 34(5-6): 645-652.
[6] OZDEMIR Z., SOULI M., FAHAHJAN Y.M.. Application of nonlinear fluid-structure interaction methods to seismic analysis of anchored and unanchored tanks [J]. Engineering Structures, 2010, 32(2): 409-423.
[7] OZDEMIR Z., SOULI M., FAHAHJAN Y.M.. Application of nonlinear fluid-structure interaction methods to seismic analysis of anchored and unanchored tanks [J]. Engineering Structures, 2010, 32(2): 409-423.
[8] ANGHILERI M., CASTELLETTIL.M.L., TIRELLI M.. Fluid-structure interaction of water filled tanks during the impact with the ground[J]. International Journal of Impact Engineering, 2005,31(3): 235-254.
[9] Daogang L., Yu L., Xiaojia Z., et al. AP1000 Shield Building Dynamic Response for different Water Levels of PCCWST Subjected to Seismic Loading Considering FSI[J]. Science and Technology of Nuclear Installations, 2015, 67: 8-15.
[10] Park Y.J., Hofmayer C.H., Chokshi N.C.. Survey of seismic fragilities used in PRA studies of nuclear power plants[J]. Elsevier Science Ltd, 1998, 62: 185-195.
[11] Joe Y.H., Cho S.G., Seismic fragility analyses of nuclear power plant structures based on the recorded earthquake data in Korea[J]. Nuclear Engineering and Design, 2005, 235: 1867-1874.
[12] 侯炜, 史庆轩. 不同地震作用方向下混凝土核心筒基于增量动力分析的抗震性能评估[J]. 振动与冲击, 2013, 32(14): 116-121.
    HOU Wei, SHI Qingxuan. Aseismic behavior evaluation for a reinforced concrete core wall based on incremental dynamic analysis in different earthquake directions[J]. Journal of Vibration and Shock, 2013, 32(14): 116-121.
[13] 赵春风.强震及爆炸荷载作用下核岛厂房动力响应及减震抗爆措施研究[D]. 大连:大连理工大学,2014.
ZHAO Chunfeng. Study on dynamic response and measures of seismic reduction and anti-explosion of nuclear island subjected to strong earthquakes and blast loads[D]. Dalian: Dalian University of Technology, 2014. (In Chinese).
[14] Luco N., Cornell C.A., et al. Vector-valued ground motion intensity measures for probabilistic seismic demand analysis. Peer report 2006/08. Berkeley: Pacific Earthquake Engineering Research Center, University of California Berkeley.
[15] Chen J., Zhao C., Xu Q., et al. Seismic analysis and evaluation of the base isolation system in AP1000 NI under SSE loading[J]. Nuclear Engineering & Design, 2014, 278:117-133.