Fragility Analysis of Prestressed Containment under Thermal-Compressive Coupling Condition

Yang Qingyu; Ma Yan; Yan Jiachuan; Gao Ge; Liu Mengsha

doi:10.13832/j.jnpe.2024.070048

Volume 46 Issue 4

Aug. 2025

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Yang Qingyu, Ma Yan, Yan Jiachuan, Gao Ge, Liu Mengsha. Fragility Analysis of Prestressed Containment under Thermal-Compressive Coupling Condition[J]. Nuclear Power Engineering, 2025, 46(4): 181-191. doi: 10.13832/j.jnpe.2024.070048

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Yang Qingyu, Ma Yan, Yan Jiachuan, Gao Ge, Liu Mengsha. Fragility Analysis of Prestressed Containment under Thermal-Compressive Coupling Condition[J]. Nuclear Power Engineering, 2025, 46(4): 181-191. doi: 10.13832/j.jnpe.2024.070048

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Fragility Analysis of Prestressed Containment under Thermal-Compressive Coupling Condition

doi: 10.13832/j.jnpe.2024.070048

Yang Qingyu^{1, 2
,},
Ma Yan³,
Yan Jiachuan^{1, 2
,
,},
Gao Ge⁴,
Liu Mengsha⁴

1.
Key Lab. of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin, 150090, China
2.
Key Lab. of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin, 150090, China
3.
Shanghai Construction No.4 (Group) Co., Ltd., Shanghai, 201103, China
4.
China Nuclear Power Engineering Co., Ltd., Beijing, 100840, China

Received Date: 2024-07-24
Rev Recd Date: 2024-10-06
Publish Date: 2025-08-15

Abstract

Abstract

In this paper, a prestressed containment structure is modeled, the finite element analysis software ABAQUS is used to simulate the thermal-compressive coupling test, and random samples of the containment obtained by using the Latin hypercube sampling method are calculated to obtain 2 containment susceptibility curves for analyzing the susceptibility corresponding to the overall functional failure and structural failure of the containment. The calculation results show that the lower and upper limits of the inner pressure bearing capacity of the containment are 0.9666 MPa and 1.0352 MPa, respectively. Under the steel lining functional failure criterion, the elastic modulus of HRB400 reinforcement has the greatest influence on the inner pressure bearing capacity of the containment; the maximum tensile strain of the steel lining is concentrated near the equipment gate opening. Under the structural failure criterion of prestressed tendons, the elastic modulus of HRB500 steel bars has the greatest influence on the internal pressure bearing capacity of the containment; the distribution of the maximum tensile strain of prestressed tendons has no obvious pattern.
- Containment,
- Functional failure,
- Structural failure,
- Friability,
- Thermal-compressive coupling conditions

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References(28)

References

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