美国NRC关于核电站设计地震动时程的相关规定

发布时间：2018-03-17 17:38

本文选题：核电站　切入点：抗震分析　出处：《土木工程学报》2017年04期 　论文类型：期刊论文

【摘要】：美国核管理委员会(NRC)颁布的标准审查大纲(SRP)第3.7.1节对核电站设计地震动时程进行了详细的规定,是目前核工程领域确定结构抗震分析所需输入地震动所遵循的基本准则。针对美国NRC-SRP3.7.1中关于核电站设计地震动时程的验收准则,分别从"种子"地震动时程的选取、设计地震动时程的相关性、持时参数、速度和位移特性以及结构非线性分析对设计地震动时程的特殊要求这五个方面,将不同版本SRP3.7.1(1989、2007和2014)对核电站设计地震动时程的规定进行了梳理,并对SRP3.7.1中的单组时程法(方法-1和方法-2)以及多组时程法进行了论述、分析和对比。在此基础上,给出了一数值算例,利用基于小波函数的地震动反应谱拟合方法合成了满足所有版本SRP3.7.1中第一种单组时程法要求的设计地震动时程。
[Abstract]:Section 3.7.1 of the standard review outline issued by the Nuclear Regulatory Commission of the United States (NRC) sets out detailed rules on the design of ground motion duration for nuclear power plants. It is a basic criterion for determining the input ground motion for seismic analysis of structures in the field of nuclear engineering at present. In view of the acceptance criteria of the design time history of ground motion for nuclear power plants in NRC-SRP3.7.1, the time history of ground motion is selected from the "seed" ground motion history, respectively. There are five aspects: the correlation of the time history of the design ground motion, the time-sustaining parameters, the characteristics of velocity and displacement, and the special requirements of the nonlinear analysis of the structure for the design of the time history of the ground motion. In this paper, different versions of SRP 3.7.1 / 1989 / 2007 and 2014 are combed over the design time history of ground motion in nuclear power station, and the single-group time-process method (method -1 and method -2) and the multi-group time-process method in SRP3.7.1 are discussed, analyzed and compared. In this paper, a numerical example is given, and the design time history of ground motion is synthesized by using the wavelet function based response spectrum fitting method of ground motion, which meets the requirements of the first single-group time-process method in all versions of SRP3.7.1.
【作者单位】：中国地震灾害防御中心;中国地震局地球物理研究所;
【基金】：地震行业科研专项经费项目(201408020、201408002) 国家自然科学基金(51178436)
【分类号】：P315.9;TM623.1

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