Experimental research on seismic responses of a new type of nuclear power plant under different site conditions
GAO Yongwu1,2, WANG Tao1,2, DAI Junwu2 ,JIN Bo2
1.Institute of Engineering Mechanics, China Earthquake Administration. Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Harbin 150080, China;
2.China Earthquake Disaster Prevention Centre，Beijing 100029，China
It is important to consider the soil-structure interaction to accurately simulate the seismic responses of the structures, subsidiary systems and components of nuclear power plants. This paper presents a set of shaking table tests on a 1:25 scaled nuclear power plant structure, with the underlying soil simulated using a multi-functional laminated shear container by which the viscous-elastic boundary is well reproduced. A group of 10 ground motion records are input through the shaking table. The PGAs are scaled to the operational basis earthquake (OBE 0.15g), the safely shutdown earthquake (SSE 0.30g), and the ultimate earthquake beyond the design basis standard (ULE 0.75g). The test result indicates that the plasticization is gradually developed in the soil with the increasing input intensity. The soil nonlinearity exerts significant influence on the responses of the superstructure. The soil significantly amplifies the structural dynamic responses, although it is in a bedrock type site. The amplification factor is 3.13, 2.1, and 1.19 for the OBE, SSE, and ULE, respectively. It decreases with the input seismic intensity, because the underlying soil enters plastification. Therefore, it is suggested that the condition of bedrock site needs further evaluation, and at any type of site, the soil-structure interaction shall be considered, particularly for the seismic design and seismic margin analysis of facilities and pipes inside a nuclear power plant. Otherwise, the seismic margin will be underestimated.
高永武1,2 王 涛1,2 戴君武2 金 波 2. 不同场地条件下某新型核电厂房的地震响应试验研究[J]. 振动与冲击, 2017, 36(18): 214-222.
GAO Yongwu1,2, WANG Tao1,2, DAI Junwu2,JIN Bo2. Experimental research on seismic responses of a new type of nuclear power plant under different site conditions. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(18): 214-222.
[1] 中华人民共和国国家技术监督局,GB50267-97, 核电厂抗震设计规范[S].北京:地震出版社, 1997.
[2] ASCE4-98. Seismic Analysis of Safety-Relate-d Nuclear Structures and Commentary[S].1999.
[3] AP1000 Design Control Document(DCD),Tier2, Revision 15.
[4] 日本电气协会.JEAG4601-1987原子力发电所耐震设计技术指针[S].
[5] RCC-G88.Design and Construction Rules for Nuclear Power Plants[S]. 1988.
[6] 李忠诚. 考虑土-结构相互作用效应的核电厂地震响应分析[D].天津:天津大学,2006.
Li Zhongcheng. Seismic Response Analysis of Nuclear Power Plants Considering Soil-Structure Interaction Effects[D].Tianjin:Tianjin University,2006. (in Chinese)
[7] 侯春林. 核电厂结构抗震分析中不同规范要求引起的差异及影响研究[D].哈尔滨:中国地震局工程力学研究所,2012.Hou Chunlin.Studies on Differences and effects of seismic analysis of nuclear power plant building based on different regulations[D].Harbin: institute of engineering mechanics ,china earthquake administration.(in Chinese)
[8] 白文婷. 核电厂抗震设计中的两个问题及厂房结构地震易损性研究[D].哈尔滨：中国地震局工程力学研究所，2013. Bai Wenting. Study on two key problems in seismic design and the fragility of factory building structures
in nuclear power plant[D]. Harbin: institute of
engineering mechanics ,China earthquake administration. (in Chinese)
[9] Tang H.T, Tang Y.K, Step J.C. Lotung Large-scale Seismic Experiment and Soil-structure Interaction Method Validation[J],Nuclear Engineering and Design 1990, 123: 397- 412.
[10] Luco J.E, Francisco C.P. Assessment of the Response of the Hualien Containment Model during Forced Vibration Tests[J], Soil Dynamics and Earthquake Engineering,
2004, 24: 1013-1035.
[11] 张敏政. 地震模拟实验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58.
Zhang Minzheng. Study on simulitude laws for shaking table tests [J]. Earthquake Engineering and Engineering Vibration, 1997, 17(2): 52-58. (in Chinese)
[12] 张敏政,孟庆林,刘晓明. 建筑结构的地震模拟试验研究[J].工程抗震，2003,(4):31-35.
[13] 李振宝,李晓亮,唐贞云等. 土-结构动力相互作用的振动台试验研究综述[J].震灾防御术, 2010,5(4):439-450.
Li Zhenbao, Li Xiaoliang, Tang Zhenyun el. Review of Research on Shaking Table Test of Dynamic Soil-
Structure Interaction[J]. Technology for Earthquake Disaster Prevention, 2010,5(4):439-450. (in Chinese)
[14] 高永武,金波,侯钢领等.基于环境激励的ERA方法在网架结构振动测试中的应用研究[J].地震工程与工程振动,2013,33(4):176-182.
GAO Yongwu,JIN Bo,HOU Gangling,et al.Eigen-system realization algorithm used in the modal parameter identification of spacial trusses based on ambientexcitation [J].Earthquake Engineering and Engineering Vibration, 2013,33(4):176-182. (in Chinese)
[15] 赵德山，乔晓光，尹向勇.AP1000核电技术对不同地基条件的适宜性分析[J].电力勘察设计,2009,(4):73-75.
ZHAO Deshan, QIAO Xiaoguang, YIN Xiangyong.Feasibility Analysis of AP1000 Nucleus Technique to Different Foundation Clause[J]. Electric Power Survery and Design, 2009,(4):73-75. (in Chinese)
[16] 孙海峰,景立平,王宁伟等. 振动台多功能叠层剪切箱研制[J].岩石力学与工程报,2011,30(12):2498-2506.
SUN Haifeng，JING Liping,WANG Ningwei, et al. Development of multi-functional laminar shear container for shaking table test [J] .Chinese Journal of Rock Mechanics and Engineering, 2011,30(12):2498-2506.(in Chinese)
[17] 孙海峰,景立平,王宁伟等. 振动台试验三维叠层剪切箱研制[J].振动与冲击,2012,31(17):26-32.
SUN Hai-feng, JING Liping, MENG Xianchun. A three-dimensional laminar shear soil container for shaking
table test[J]. J. Vibration and Shock, 2012,31(17):26-32. (in Chinese.)
[18] 白晋华,赵树峰,谌登华等. 运行核电厂抗震裕度评价研究[J]. 原子能科学技,2012,46(12):1446-1450.
BAI Jinhua,ZHAO Shufeng,CHEN Denghua,el. Research on Seismic Margin Analysis of Operation Nuclear Power Plant[J]. Atomic Energy Science and Technology, 2012,46(12):1446-1450. (in Chinese)
