考虑SSI效应的核电站厂房楼层反应谱对比分析
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摘要
在集总参数表征的场地动阻抗框架内,国内外主要核电厂抗震设计规范均推荐单一常系数弹簧-阻尼器并联体系表征均质场地动力模型。结合土-结构相互作用数值分析的最新发展,本文以CPR1000型反应堆厂房的集中质量简化模型作为研究对象,基于ASCE4-98规范、RCC-G规范、集10参数等适用于均质场地的集总参数地基模型以及适用于非均质复杂场地的粘弹性人工边界场地模型,开展了直接法和阻抗子结构法两种时程分析方法的对比研究,并将得到的楼层加速度反应谱与SASSI程序计算结果进行对比,互相验证了不同地基动力数值模型以及计算方法的有效性,对于评价核电厂地基适应性具有一定的指导与参考意义。
Background: In the framework of lumped-parameter numerical models,the traditional soil dynamic impedance models,recommended by the main international seismic design codes of the nuclear power plant,are only expressed by a single parallel connection system of spring and damper.Purpose: In order to combine the recent development of soil-structure interaction analysis.Methods: Comparative study of both the direct method and substructure method history analysis is carried out based on the lumped parameter models recommended by seismic design codes of ASCE4-98,RCCG which are both applicable to the homogeneous site and also massless foundation model and viscous-spring artificial boundary model of especially fit for the numerical simulation of non-homogeneous site.Results: Finally,by taking the analysis of FRS for a certain CPR1000 reactor plant as an example,comparison analyses of homogeneous and inhomogeneous layer site conditions for various soil dynamic numerical models above-mentioned are carried out.In addition,the calculated results are compared to that of SASSI program.It can be concluded that the calculation results are similar based on different methods.Conclusions: This paper validates the applicability of different soil dynamic numerical models mentioned above and will provide some reference and guidance significance in the aspect of evaluation the seismic suitable for the site of nuclear power plant.
Background: In the framework of lumped-parameter numerical models,the traditional soil dynamic impedance models,recommended by the main international seismic design codes of the nuclear power plant,are only expressed by a single parallel connection system of spring and damper.Purpose: In order to combine the recent development of soil-structure interaction analysis.Methods: Comparative study of both the direct method and substructure method history analysis is carried out based on the lumped parameter models recommended by seismic design codes of ASCE4-98,RCCG which are both applicable to the homogeneous site and also massless foundation model and viscous-spring artificial boundary model of especially fit for the numerical simulation of non-homogeneous site.Results: Finally,by taking the analysis of FRS for a certain CPR1000 reactor plant as an example,comparison analyses of homogeneous and inhomogeneous layer site conditions for various soil dynamic numerical models above-mentioned are carried out.In addition,the calculated results are compared to that of SASSI program.It can be concluded that the calculation results are similar based on different methods.Conclusions: This paper validates the applicability of different soil dynamic numerical models mentioned above and will provide some reference and guidance significance in the aspect of evaluation the seismic suitable for the site of nuclear power plant.
引文
1中华人民共和国(GB 50267-97).核电厂抗震设计规范[S].北京:中国计划出版社,1998 The People’s Republic of China(GB 50267-97).Seismic Design Code of Nuclear Power Plants[S].Beijing:China Planning Press,1998
2 ASCE STANDARD 4-98,Seismic Analysis of Safety-Related Nuclear Structures and Commentary[S].Society of Civil Engineers,1998
3 RCC-G.Adaptation for the Model M310(1000 M We-PWE)of the RCC-G 900 MWe-PWE-Edition[S].1986
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6杜建国.基于SBFEM的大坝-库水-地基动力相互作用分析[M].大连:大连理工大学,2007 DU Jianguo.The dynamic interaction analysis of dam-reservior-foundation based on SBFEM[M].Dalian:Dalian University of Technology,2007
7刘晶波,王振宇,杜修力,等.波动问题中的三维时域粘弹性人工边界[J].工程力学,2005,22(6):46–51 LIU Jingbo,WANG Zhenyu,DU Xiuli.Three-dimensional viso-elastic artificial boundaries in time domain for wave motion problems[J].Engineering Mechanias,2005,22(6):46–51
8 Wen-yu Jean,Tsung-wu Lin,Joseph Penzien.System parameters of soil foundations for time domain dynamic analysis[J].Earthquake Engineering and Structural Dynamics,1990,19(4):541–553
9朱秀云,李建波,林皋,等.基于谐响应的核电厂地基动阻抗数值求解算法研究[J].建筑科学与工程学报,2009,26(3):65–70 ZHU Xiuyun,LI Jianbo,LIN Gao,et al.Numerical solution to the soil dynamic impedance for the nuclear power plant based on harmonic response analysis[J].Journal of Architecture and Civil Engineering,2009,26(3):65–70
10刘晶波,杜义欣,闫秋实.粘弹性人工边界及地震动输入在通用有限元软件中的实现[J].防灾减灾工程学报,2007,4(27):37–42 LIU Jingbo,DU Yixin,YAN Qiushi.Application of viso-elastic artificial boundaries and seismic input in general finite element software[J].Journal of Disaster Prevention and Mitigation Engineering,2007,4(27):37–42
11李忠献,李忠诚,沈望霞.核反应堆厂房结构楼层反应谱的敏感性分析[J].核动力工程,2005,26(1):44–50 LI Zhongxian,LI Zhongcheng,SHEN Wangxia.Sensitivity analysis for floor response spectra of nuclear reactor buildings[J].Nuclear Power Engieering,2005,26(1):44–50
2 ASCE STANDARD 4-98,Seismic Analysis of Safety-Related Nuclear Structures and Commentary[S].Society of Civil Engineers,1998
3 RCC-G.Adaptation for the Model M310(1000 M We-PWE)of the RCC-G 900 MWe-PWE-Edition[S].1986
4 Deeks A J,Randolph M F.Axisymmetric time-domain transmitting boundaries[J].Journal of Engineering Mechanics,1994,120(1):25–42
5刘晶波,吕彦东.结构–地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55–64 LIU Jingbo,LU Yandong.A direct method for analysis of dynamic soil-structure interaction[J].China Civil Engineering Journal,1998,31(3):55–64
6杜建国.基于SBFEM的大坝-库水-地基动力相互作用分析[M].大连:大连理工大学,2007 DU Jianguo.The dynamic interaction analysis of dam-reservior-foundation based on SBFEM[M].Dalian:Dalian University of Technology,2007
7刘晶波,王振宇,杜修力,等.波动问题中的三维时域粘弹性人工边界[J].工程力学,2005,22(6):46–51 LIU Jingbo,WANG Zhenyu,DU Xiuli.Three-dimensional viso-elastic artificial boundaries in time domain for wave motion problems[J].Engineering Mechanias,2005,22(6):46–51
8 Wen-yu Jean,Tsung-wu Lin,Joseph Penzien.System parameters of soil foundations for time domain dynamic analysis[J].Earthquake Engineering and Structural Dynamics,1990,19(4):541–553
9朱秀云,李建波,林皋,等.基于谐响应的核电厂地基动阻抗数值求解算法研究[J].建筑科学与工程学报,2009,26(3):65–70 ZHU Xiuyun,LI Jianbo,LIN Gao,et al.Numerical solution to the soil dynamic impedance for the nuclear power plant based on harmonic response analysis[J].Journal of Architecture and Civil Engineering,2009,26(3):65–70
10刘晶波,杜义欣,闫秋实.粘弹性人工边界及地震动输入在通用有限元软件中的实现[J].防灾减灾工程学报,2007,4(27):37–42 LIU Jingbo,DU Yixin,YAN Qiushi.Application of viso-elastic artificial boundaries and seismic input in general finite element software[J].Journal of Disaster Prevention and Mitigation Engineering,2007,4(27):37–42
11李忠献,李忠诚,沈望霞.核反应堆厂房结构楼层反应谱的敏感性分析[J].核动力工程,2005,26(1):44–50 LI Zhongxian,LI Zhongcheng,SHEN Wangxia.Sensitivity analysis for floor response spectra of nuclear reactor buildings[J].Nuclear Power Engieering,2005,26(1):44–50
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