| 特高压电气设备抗震设计反应谱特征周期取值研究 |
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| 引用本文： | 尤红兵,赵凤新.特高压电气设备抗震设计反应谱特征周期取值研究[J].震灾防御技术,2014,9(2):171-181. |
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| 作者姓名： | 尤红兵 赵凤新 |
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| 作者单位： | 中国地震灾害防御中心，北京100029;中国地震灾害防御中心，北京100029 |
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| 基金项目： | 地震科技星火计划专项（编号：XH12063）资助 |
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| 摘 要： | 特征周期是抗震设计反应谱的重要参数,开展特高压电气设备抗震设计反应谱特征周期的研究,具有重要的理论意义和工程应用价值。对美国、日本等世界范围内的1448条Ⅲ类场地水平向强震记录进行了统计分析,结果表明震级、震中距对特征周期有较大影响;强震记录特征周期的80%分位数结果约为0.9s。对全国近年来已通过评审的312个Ⅲ类场地的地震安全性评价结果进行了统计分析,70%分位数的特征周期为0.9s。结合相关规范的对比分析,建议特高压电气设备抗震设计反应谱的特征周期取0.9s,可有效保证特高压电气设备的地震安全。
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| 关 键 词： | 特高压电气设备 抗震设计反应谱 特征周期 统计分析 |
| 收稿时间： | 7/8/2013 12:00:00 AM |
Characteristic Period Value of Seismic Design Response Spectrum of UHV Electrical Equipments |
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| You Hongbing and Zhao Fengxin.Characteristic Period Value of Seismic Design Response Spectrum of UHV Electrical Equipments[J].Technology for Earthquake Disaster Prevention,2014,9(2):171-181. |
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| Authors: | You Hongbing and Zhao Fengxin |
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| Institution: | China Earthquake Disaster Prevention Center, Beijing 100029, China;China Earthquake Disaster Prevention Center, Beijing 100029, China |
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| Abstract: | Characteristic period is an important parameter of seismic design response spectrum.It has important theoretical significance and engineering application value to study the characteristic period of seismic design response spectrum of ultra high voltage （UHV） electrical equipment.In this paper,we analyzed 1448 horizontal earthquake records within the world scope including the United States and Japan for Site Class Ⅲ.Our results show that both magnitude and epicentral distance have great influence on the characteristic period.About 80％ percentile of characteristic periods of strong earthquake records is about 0.9s.We also conducted statistical analysis on the seismic hazard assessment results of 312 projects of China in recent years,and we found that about 70％ percentile of characteristic periods is about 0.9s.Combined with the related code comparison and analysis,we suggested that the characteristic period of seismic design response spectrum of UHV electrical equipment should select 0.9s in order to effectively guarantee the seismic safety of UHV electrical equipment. |
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| Keywords: | UHV electrical equipments Seismic design response spectrum Characteristic period Statistical analysis |
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