Research on FSI effect and simplified method of PCS water tank of nuclear island building under earthquake

Song, Chenning; Li, Xiaojun; Guoliang, Zhou; Wei, Chao

doi:10.1016/j.pnucene.2017.05.025

Cited by 12 publications

(9 citation statements)

References 18 publications

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“…In addition to bearing the load of nuclear island building, the resonance of cooling water in the water tank should be avoided. In the author's previous research [11], 1st sloshing frequency of cooling water is about 0.13 Hz. So, the isolation bearings are chosen to ensure that 1st frequency of isolation structure is greater than 0.4 Hz.…”

Section: Description Of Isolation Systemmentioning

confidence: 91%

“…e numerical models are shown in Figure 5, and Xdirection, Y-direction, and Z-direction represent S-N, E-W, and vertical direction separately. e geometry sizes of previous papers [10,11] are referenced, and the main material parameters are shown in Table 2.…”

Section: Numerical Modelsmentioning

confidence: 99%

“…Considering the whole shield building and auxiliary building, Zhao et al [9,10] did some research on the natural frequencies and dynamic responses of nuclear island building with various water levels and different elevations of air intake. Song et al [11,12] established finite element models with water, shield building, and auxiliary building, and investigated FSI effect of nuclear island building. In addition, one simplified method was proposed and proved to be reasonable to simulate FSI effect.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, this simplified method is used for analysis. e schematic diagram of the simplified model is shown in Figure 4, and the details of the simplified model have been reported in reference [11]. In Figure 4, m 0 is the impulsive mass and m 1 is 1st mode convective mass.…”

Section: Introduction Of Numerical Modelsmentioning

confidence: 99%

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Research on Seismic Response of Base‐Isolated Nuclear Island Building considering FSI Effect of PCS Water Tank

Song

Wei

Zhi

2020

Advances in Civil Engineering

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Base isolation can be used to reduce seismic response of structure and protect the structure from damage subjected to earthquake. To study the isolation effect of new PWR nuclear power plant with a base isolation system, considering FSI (fluid-structure interaction) effect by the simplified model, two 3D numerical models (one nonisolated model and one isolated model) were established. After natural frequency analysis, one artificial ground motion was chosen to analyze isolation effect qualitatively. Based on the results, the accelerations and relative displacements of nuclear island building under ten natural ground motions were statistically analyzed to evaluate the isolation effect quantitatively. The results show that the base isolation system can reduce the natural frequencies of nuclear island building. Horizontal accelerations can be reduced effectively, but the isolation effect is not obvious in vertical direction. The acceleration reduction ratio of the top is about 70%–90%, and the acceleration reduction ratio of the lower part is about 20%–60%. Horizontal displacement of the isolated model is far larger than that of the nonisolated model, and horizontal displacement will become larger considering FSI effect. These conclusions could provide some references for studies on the isolation system of nuclear island building.

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Section: Description Of Isolation Systemmentioning

confidence: 91%

Section: Numerical Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introduction Of Numerical Modelsmentioning

confidence: 99%

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Research on Seismic Response of Base‐Isolated Nuclear Island Building considering FSI Effect of PCS Water Tank

Song

Wei

Zhi

2020

Advances in Civil Engineering

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“…In this way, it will be easier for the public to be convinced that there is no natural disaster risk in the nuclear power plant. Choi and Kim [74], Song et al [75] and Rao and Choudhury [76] also identified that necessary precautions should be taken to minimize the risks of the earthquake while building the nuclear power plants. In parallel, it must be proven that the nuclear power plant construction is sound.…”

Section: Limitations and Implicationsmentioning

confidence: 99%

Consensus-Based Public Acceptance and Mapping of Nuclear Energy Investments Using Spherical and Pythagorean Fuzzy Group Decision Making Approaches

et al. 2020

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Vibration investigation on fluid-structure interaction of AP1000 shield building subjected to multi earthquake excitations

Wang

Wei-liang

et al. 2019

Annals of Nuclear Energy

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Research on FSI effect and simplified method of PCS water tank of nuclear island building under earthquake

Cited by 12 publications

References 18 publications

Research on Seismic Response of Base‐Isolated Nuclear Island Building considering FSI Effect of PCS Water Tank

Research on Seismic Response of Base‐Isolated Nuclear Island Building considering FSI Effect of PCS Water Tank

Consensus-Based Public Acceptance and Mapping of Nuclear Energy Investments Using Spherical and Pythagorean Fuzzy Group Decision Making Approaches

Vibration investigation on fluid-structure interaction of AP1000 shield building subjected to multi earthquake excitations

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