基于CMS的核电厂安全壳设计地震动确定方法

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (24) : 38-45.

论文

胡进军1,2，李琼林1,2，吕景浩1,2，谢礼立1,2

作者信息 +

A study on the input ground motion of the containment vesselof nuclear power plants based on conditional mean spectrum

HU Jinjun1,2, LI Qionglin1,2,L Jinghao1,2,XIE Lili1,2

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文章历史 +

摘要

选取符合核电厂设计要求的输入地震动进行结构动力时程反应分析是保障核电厂抗震能力的重要环节。基于条件均值谱(CMS)的输入地震动选取方法具有既考虑结构自身动力特性又考虑场地地震危险性特征的优点，已经在地震工程相关领域得到应用。本文核电厂安全壳结构为研究对象，从概率地震危险性分析出发，以条件均值谱为输入地震动目标谱，给出了核电厂安全壳输入地震动目标谱的计算流程；在国内外选取的18次典型地震的2480条地震动数据库中，选取了与目标谱匹配良好的40条地震动；再利用epsilon方法在上述地震动数据库中各选取40条地震动，将这两组地震动分别输入安全壳有限元模型中进行动力时程分析，通过对比两种方法顶点的最大位移平均值与标准差，发现CMS方法选取的地震动记录无偏性最好，是一种高效合理的输入地震动选取方法。

Abstract

Performing nonlinear time history analyses on structures of nuclear power plants with applicable input ground motions is important to improve the design of nuclear power plants.The selection of input ground motion based on conditional mean spectrum has been accepted by researchers because it can incorporate the behaviors of ground motions and the dynamic features of structures.Based on the probabilistic seismic hazard analysis, a condition mean spectrum was used as the target spectrum to select ground motions and 40 ground motion records have been selected in a database which is consisted by 2 480 records derived from 18 earthquakes.In addition, the procedures of computing the target spectrum based on the conditional mean spectrum was provided.An other group of ground motions with 40 records have also been selected by the epsilon method.The two groups of ground motions were input in an FEM model of vessel of nuclear power plants and the largest displacements at the top of vessel were achieved.The results show that the CMS method is an applicable selection method.

导出引用

胡进军1,2，李琼林1,2，吕景浩1,2，谢礼立1,2. 基于CMS的核电厂安全壳设计地震动确定方法[J]. 振动与冲击, 2018, 37(24): 38-45

HU Jinjun1,2, LI Qionglin1,2,L Jinghao1,2,XIE Lili1,2. A study on the input ground motion of the containment vesselof nuclear power plants based on conditional mean spectrum[J]. Journal of Vibration and Shock, 2018, 37(24): 38-45

参考文献

[1] STEWART J P, CHIOU B, BRAY J D, et al. Ground Motion Evaluation Procedures for Performance-based Design [J]. Soil Dynamics and Earthquake Engineering, 2002, 22(9):765-772.
[2] BOMMER J J, ACEVEDO B. The use of real earthquake accelerograms as input to dynamic analysis [J]. Journal of Earthquake Engineering, 2004, 08(special issue): 43-91.
[3] 王亚勇,程民宪,刘小弟. 结构抗震时程分析法输入地震记录的选择方法及其应用[J].建筑结构, 1992, 5: 3-7.
WANG Yayong, CHENG Minxian, LIU Xiaodi. Seismic time history analysis of structures, selection of input seismic records and their applications [J]. building structure,1992,5:3-7.
[4] 王亚勇,刘小弟,程民宪. 建筑结构时程分析法输入地震波的研究[J]. 建筑结构学报, 1991, 12(2): 51-60.
WANG Yayong, LIU Xiaodi, CHENG Minxian. Study on input seismic wave of time history analysis method of building structure [J]. Journal of building structures, 1991, 12(2): 51-60.
[5] WATSON L J, ABRAHAMSON N. Selection of ground motion time series and limits on scaling [J]. Soil Dynamics and Earthquake Engineering, 2006, 26:477-482.
[6] MARTINEZ-RUEDA J E. Scaling Procedure for Natural Accelerograms Based on a System of Spectrum Intensity Scales [J]. Earthquake Spectra, 1998, 14(1):135-152.
[7] KAPPOS A J, KYRIAKAKIS P. Scaling Procedure for Natural Accelerograms Based on a System of Spectrum Intensity Scales [J]. Soil Dynamics and Earthquake Engineering, 2000, 20(1):111-123.
[8] SHOME N, CORNELL C A, BAZZURRO P, et al. Earthquakes, Records, and Nonlinear Responses [J]. Earthquake Spectra, 1998, 14(3):469-500.
[9] 谢礼立,翟长海. 最不利设计地震动研究[J]. 地震学报, 2003, 5: 250-261.
XIE Lili, ZHAI Changhai. Study on the severest real ground motion for seismic design and analysis[J]. Acta Seismologica Sinica, 2003, 5: 250-261.
[10] 王国新,李宏男,赵真,伊廷华. 结构动力反应分析中的地震动输入问题研究[J].沈阳建筑大学学报, 2008, 24(6): 993-998.
WANG Guoxin, LI Hongnan, ZHAO Zhen, YI Tinghua. Study on Ground Motion Input for Structural Dynamic Analysis [J] Journal of Shenyang Jianzhu University, 2008, 24(6): 993-998.
[11] 曲哲,叶列平,潘鹏. 建筑结构弹塑性时程分析中地震动记录选取方法的比较研究[J].土木工程学报, 2011, 44(7): 10-21.
QU Zhe, YE Lieping, PAN Peng. Comparative study on methods of selecting earthquake ground motions for nonlinear time history analyses of building structures [J]. China Civil Engineering Journal, 2011, 44(7): 10-21.[12] BAKER J W. Conditional mean spectrum: tool for ground-motion selection [J]. Journal of Structural Engineering, 2011, 137(3):322-331.
[13] CORNELL C A. Engineering seismic risk analysis [J]. Bulletin of the Seismological Society of America, 1968, 58(5):1583-1606.
[14] 朱瑞广, 于晓辉, 吕大刚. 基于地震动模拟的一致危险谱和条件均值谱生成及应用[J]. 工程力学, 2015 (S1): 196-201.
ZHU Ruiguang , YU Xiaohui , LÜ Dagang. Generation and application of the uniform hazard spectrum and the conditional mean spectrum based on ground motion simulation [J]. Engineering Mechanics, 2015 (S1): 196-201.
[15] 陈波. 结构非线性动力分析中地震动记录的选择和调整方法研究[J]. 国际地震动态, 2014(1):37-38.
CHEN Bo. Study on selection and adjustment of ground motion recording in structural nonlinear dynamic analysis [J]. Recent Developments in World Seismology, 2014(1):37-38.
[16] 陈波, 温增平. 考虑目标谱不确定性及谱形的实际地震动记录优化选取和调整方法[J]. 建筑结构学报, 2015, 36(11):99-108.
CHEN Bo, WEN Zengping. Optimized real ground motion selection and scaling method considering uncertainty and spectral shape of target spectrum [J]. Journal of Building Structures, 2015, 36(11):99-108.
[17] MCGUIRE R K. Probabilistic seismic hazard analysis and design earthquakes: closing the loop [J]. Bulletin of the Seismological Society of America, 1995, 85(5):1275-1284.
[18] American Society of Civil Engineers. Seismic design criteria for structures, systems, and components in nuclear facilities, ASCE/SEI 43-05, 2005.
[19] BOORE D M, STEWART J P, ATKINSON G M. NGA-West2 equations for predicting response spectral accelerations for shallow crustal earthquakes. Pacific Earthquake Engineering Research Center Headquarters, University of California, Berkeley, 2013.
[20] 中华人民共和国住房和城乡建设部.混凝土结构设计规范(GB50010-2010).中国建筑工业出版社, 北京, 2010. Ministry of housing and urban rural development of the People's Republic of China. Code for design of concrete structures(GB50010-2010) [C]. China Building Industry Press , Beijing.
[21] BAKER J W, JAYARAM N. Correlation of spectral acceleration values from NGA ground motion models [J]. Earthquake Spectra, 2008, 24(1):299-317.
[22] 吕景浩. 基于条件均值谱的核电厂安全壳输入地震动研究[D].中国地震局工程力学研究所,2016.
LÜ Jinghao. Study on the Input Ground Motion of the Containment Vessel of Nuclear Power Plants Based on Conditional Mean Spectrum [D]. Institute of Engineerign Mechanics, China Earthquake Administration, 2016.