CPR1000核电安全壳结构抗震安全分析  

Seismic safety of containment vessel structures for CPR1000 nuclear power plant

作　　者：张朝弼 林静 徐浩 ZHANG Chao-bi;LIN Jing;XU Hao(School of Ocean and Civil Engineering, Dalian Ocean University, Dalian 116023, China)

机构地区：[1]大连海洋大学海洋与土木工程学院

出　　处：《河南城建学院学报》2019年第2期1-6,26,共7页Journal of Henan University of Urban Construction

基　　金：大连海洋大学博士启动基金(HDYJ201810);海岸及近海工程国家重点实验室开放基金(LP1711)

摘　　要：安全壳是核电结构的重要组成结构,其安全性尤为重要,本文选择我国自主研发的CPR1000核安全壳进行动力分析。为验证其在设计地震动下的抗震性能,建立了有限元模型,分析了结构的模态和频率,采用核电专用地震波对结构进行抗震时程分析。结果表明:在0.2g峰值地震动下结构处于弹性阶段,具有较大的抗震安全储备,满足我国核电厂安全导则对抗震Ⅰ类结构的规定。As the most important structure in the nuclear power plant, the safety of containment vessel is especially important. In this paper, the seismic behavior of CPR1000 that developed independently in China was analyzed. Herein, the finite element of the containment vessel was built, the modal and frequency were analyzed, and the seismic time history analysis adopted the artificial acceleration data that derived from Regulatory Guide US NRC. Results indicated that the containment vessel is at elasticity stage under peak ground acceleration (0.2g), the safety margin is large enough and satisfies the regulations on the seismic structures of class I in Code for Seismic Design of Nuclear Power Plants in China.

关 键 词：核电站 安全壳 有限元 模态 抗震 

分 类 号：TL364[核科学技术—核技术及应用] TU279.7[建筑科学—建筑设计及理论]