匹配设计反应谱的目标功率谱密度的确定方法

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英文篇名：Method of Developing Target Power Spectral Density Compatible with Design Response Spectra 作者：孙渝刚 ; 褚濛 ; 黄小林 ; 丁振坤 英文作者：Sun Yugang;Chu Meng;Huang Xiaolin;Ding Zhenkun;Shanghai Nuclear Engineering Research and Design Institute Co.Ltd.;Tongji University; 关键词：设计地震动 ; 设计反应谱 ; 设计时程 ; 目标功率谱密度 英文关键词：Design ground motion;;Design response spectra;;Design time history;;Target power spectral density 中文刊名：HDLG 英文刊名：Nuclear Power Engineering 机构：上海核工程研究设计院有限公司;同济大学; 出版日期：2019-06-15 出版单位：核动力工程 年：2019 期：v.40;No.234 基金：国家科技重大专项课题(2017ZX06002003) 语种：中文; 页：HDLG201903025 页数：5 CN：03 ISSN：51-1158/TL 分类号：129-133

摘要

美国核管会标准审查大纲(SRP)3.7.1节要求,核电厂结构、系统和部件(SSCs)抗震设计时程需同时满足包络设计反应谱和匹配设计反应谱的目标功率谱密度(PSD)的要求。本文结合2014版SRP 3.7.1,对匹配设计反应谱的目标PSD的确定方法进行介绍,并根据其算法编写相应的计算程序,通过算例分析对程序结果进行验证。结果表明:计算所得RG1.60谱、美国中东部和西部基岩厂址谱的目标PSD与SRP 3.7.1结果具有较好的一致性,且基于本文所得目标PSD和三角级数叠加法所构造的加速度时程反应谱与设计反应谱匹配良好。本文所给出的目标PSD的确定方法可为核电厂抗震设计时程的PSD检验提供重要依据,且采用本文方法生成目标PSD,设计时程的PSD检验仅需包络该目标PSD的70%。
        U.S. NRC SRP 3.7.1 requires that the time history for the SCCs seismic design of nuclear power plants should envelop both the design response spectra and the target power spectral density(PSD) function compatible with the design response spectra. According to SRP3.7.1(2014), the method of developing the target PSD compatible with the design response spectra and the corresponding computer program was presented in this paper. The results of the computer program were verified by some examples. The results show that the calculated target PSD compatible with RG1.60, CEUS and WUS rock sites response spectra were consistent with the corresponding results provided in SRP 3.7.1, and the spectrum from the artificial time history which developed by the target PSD and the superposition method of trigonometric series adequately matched the design response spectra. The generation of target PSD in this paper can provide technical basis for the PSD check on the time history for the SSCs seismic design of nuclear power plants, and when the target PSD were developed using the method described in this paper, the PSD check should be set at 70 percent of the target PSD.

引文

[1]NRC.Standard review plan,Section 3.7.1.seismic design parameters:NUREG-0800[R].Washington:United States Nuclear Regulatory Commission,2007.
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    [3]NRC.Technical basis for revision of regulatory guidance on design ground motions:hazard-and risk-consistent ground motion spectra guidelines:NUREG/CR-6728[R].Washington:United States Nuclear Regulatory Commission,2001.
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