Experimental Study on Mechanical Performance of Nuclear Containment Truncated Cone Region

Lan Tianyun; Wu Yuzheng; Xiao Dan; Zhou Chuanbo; Dong Zhanfa; Guo Junying; Xiong Meng

doi:10.13832/j.jnpe.2023.04.0107

Volume 44 Issue 4

Aug. 2023

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Lan Tianyun, Wu Yuzheng, Xiao Dan, Zhou Chuanbo, Dong Zhanfa, Guo Junying, Xiong Meng. Experimental Study on Mechanical Performance of Nuclear Containment Truncated Cone Region[J]. Nuclear Power Engineering, 2023, 44(4): 107-115. doi: 10.13832/j.jnpe.2023.04.0107

Citation:

Lan Tianyun, Wu Yuzheng, Xiao Dan, Zhou Chuanbo, Dong Zhanfa, Guo Junying, Xiong Meng. Experimental Study on Mechanical Performance of Nuclear Containment Truncated Cone Region[J]. Nuclear Power Engineering, 2023, 44(4): 107-115. doi: 10.13832/j.jnpe.2023.04.0107

Citation:

Lan Tianyun, Wu Yuzheng, Xiao Dan, Zhou Chuanbo, Dong Zhanfa, Guo Junying, Xiong Meng. Experimental Study on Mechanical Performance of Nuclear Containment Truncated Cone Region[J]. Nuclear Power Engineering, 2023, 44(4): 107-115. doi: 10.13832/j.jnpe.2023.04.0107

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Experimental Study on Mechanical Performance of Nuclear Containment Truncated Cone Region

doi: 10.13832/j.jnpe.2023.04.0107

1.
China Nuclear Power Design Co., Ltd. (Shenzhen), Shenzhen, Guangdong, 518031, China
2.
State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen, Guangdong, 518031, China
3.
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing, 211189, China

Received Date: 2022-09-10
Rev Recd Date: 2023-03-23
Publish Date: 2023-08-15

Abstract

Abstract

The truncated cone area of nuclear containment (the junction of shell and raft foundation) has irregular shape and complex stress. Studying the stress mechanism of this area is important to master the structural performance of the whole containment. In this study, the truncated cone area was taken as the object of study. On the basis of the scale model of truncated cone area obtained by ABAQUS, two specimens with scale ratio of 1∶3 were made to carry out static tests under two load conditions: with and without internal pressure. The test results show that the failure mode of specimen 1 (without internal pressure) is bending shear failure with horizontal displacement of 27.7mm, while the failure mode of specimen 2 (with internal pressure) is shear failure with horizontal displacement of 32.6mm. The main crack zone of the two specimens is the junction of the inner bottom plate and the truncated cone. The yield position of the reinforcement mainly appears at the upper transverse reinforcement, while the vertical reinforcement on the outside of the cone is not fully functional. The results can guide the optimization of structural reinforcement.
- Nuclear containment,
- Truncated cone,
- Scale model,
- Static test

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References(15)

References

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