Dynamic responses of AP1000 reinforced concrete shield building subjected to contact explosion

CHEN Jianyun; CAO Xiangyu; XU Qiang; LI Jing

doi:10.11883/bzycj-2019-0151

Volume 40 Issue 4

Apr. 2020

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CHEN Jianyun, CAO Xiangyu, XU Qiang, LI Jing. Dynamic responses of AP1000 reinforced concrete shield building subjected to contact explosion[J]. Explosion And Shock Waves, 2020, 40(4): 044201. doi: 10.11883/bzycj-2019-0151

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CHEN Jianyun, CAO Xiangyu, XU Qiang, LI Jing. Dynamic responses of AP1000 reinforced concrete shield building subjected to contact explosion[J]. Explosion And Shock Waves, 2020, 40(4): 044201. doi: 10.11883/bzycj-2019-0151

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Dynamic responses of AP1000 reinforced concrete shield building subjected to contact explosion

doi: 10.11883/bzycj-2019-0151

CHEN Jianyun^{1, 2
,},
CAO Xiangyu²,
XU Qiang^{1, 2
,
,},
LI Jing²

1.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
2.
Institute of Earthquake Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received Date: 2019-04-23
Rev Recd Date: 2019-11-11

Available Online: 2020-03-25

Publish Date: 2020-04-01

Abstract

Abstract

The reinforced concrete (RC) shield building is the first external defense layer of AP1000 structure. Therefore, the safety and integrity must be ensured during the plant life in any conditions such as the blast loading. In this study, the coupled Euler-Lagrange (CEL) method was used to numerically simulate the fluid and structure interaction (FSI) between air and AP1000 RC shield building. The dynamic response analysis of the 20 contact explosion positions of the shield building under explosive loads were carried out, and the damage mass was used to evaluate the damage. The evolution mechanism of pressure and damage mode were discussed. The numerical results clearly show that, under the contact explosive loads, the RC shield building has the local damage near the explosive point. The damage degree at the same height but with different circumferential angle are similar, while those in the same circumferential angle with different height are different. In addition, through analyzing the pressure and damage evolution, the strategy of the different parts of the plant reinforcement was proposed. These results might be helpful to understand the behaviors and characteristics of the AP1000 RC shield building under contact explosion and provide valuable references in design and engineering practice.
- AP1000 RC shield building,
- CEL method,
- contact explosion,
- damage characteristic,
- dynamic responses,
- reinforcement strategy

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References(32)

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