Study on Shaking Table Test of Nuclear Structure Considering SSI Effect and Isolation

ZHOU Zhiguang; CHEN Hao; ZHAO Jinyi

doi:10.13204/j.gyjzG19100102

Volume 52 Issue 6

Sep. 2022

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ZHOU Zhiguang, CHEN Hao, ZHAO Jinyi. Study on Shaking Table Test of Nuclear Structure Considering SSI Effect and Isolation[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(6): 87-92. doi: 10.13204/j.gyjzG19100102

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Study on Shaking Table Test of Nuclear Structure Considering SSI Effect and Isolation

doi: 10.13204/j.gyjzG19100102

College of Civil Engineering, Tongji University, Shanghai 200092, China

Received Date: 2019-10-01
Available Online: 2022-09-05

Abstract

Abstract

Soil-structure interaction (SSI) has obvious influence on structural seismic response. To study the effect of SSI on nuclear, taking the third-generation reactor AP1000 containment structure as the object, a 1/40 scale model was fabricated for the shaking table test, and a flexible soil container was applied to simulate the unlimited site and eliminate the boundary effect as far as possible. The results indicate that: 1) for the non-isolated NPP structure, considering SSI will reduce the natural frequency of the model. Meanwhile, the effect makes the high-frequency component of the acceleration decrease, and the peak frequency moves from high frequency to low frequency. Therefore, the soil shows a certain isolation effect and reduces the acceleration of the containment structure; 2) for isolated NPP structure, considering SSI has almost no effect on the natural frequency, but SSI effect will weaken the isolation effect and increase the acceleration value at some frequencies.
- nuclear power plant,
- soil-structure interaction,
- seismic isolation,
- shaking table test,
- floor response spectrum

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References(16)

References

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