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作者:

Liu, Xuchen (Liu, Xuchen.) | Li, Xiaojun (Li, Xiaojun.) (学者:李小军) | Li, Zaixian (Li, Zaixian.) | Wang, Xiaohui (Wang, Xiaohui.) | Zhang, Youjia (Zhang, Youjia.) | Supervison, Ning Wang (Supervison, Ning Wang.)

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Scopus SCIE

摘要:

The high-density characteristic of heavy concrete is the main factor affecting its excellent radiation protection performance. The heavy concrete commonly used in the nuclear power plant structure are hematite concrete and barite concrete. Based on the finite element method, the finite element models of three transfer and purging rooms of nuclear power plant were established. The models used C40 ordinary concrete, C40 hematite concrete and C40 barite concrete respectively. Modal analysis and seismic response time history analysis were carried out for the three models to discuss the dynamic response characteristics and seismic performance of the transfer and purging rooms, and to analyze the influence of heavy concrete on the natural vibration characteristics and seismic response of the transfer and purging rooms. The results show that the structural stiffness of the transfer and purging rooms is large, the natural vibration period is short, the response to the ground motion is small, and the structure is still working in an elastic state, and the hematite concrete has little effect on the natural vibration characteristics and seismic response of the transfer and purging rooms, while the barite concrete can significantly prolong the natural vibration period of the transfer and purging rooms and amplify the seismic response of the structure. The structure of transfer and purging rooms has a sufficient safety margin, and the transfer and purging rooms using heavy concrete can fully meet the requirements of structural seismic performance.

关键词:

Hematite concrete Dynamic analysis Nuclear power plant Barite concrete Seismic performance

作者机构:

  • [ 1 ] [Liu, Xuchen]East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Peoples R China
  • [ 2 ] [Liu, Xuchen]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 3 ] [Li, Xiaojun]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Zaixian]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Xiaohui]China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
  • [ 6 ] [Supervison, Ning Wang]China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
  • [ 7 ] [Zhang, Youjia]Northeast Elect Power Univ, Sch Civil Engn & Architecture, Jilin 132012, Peoples R China

通讯作者信息:

  • [Li, Xiaojun]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China;;

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来源 :

STRUCTURES

ISSN: 2352-0124

年份: 2023

卷: 51

页码: 1372-1383

4 . 1 0 0

JCR@2022

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