气候变化领域集成服务门户(CCPortal): Tornado-resisting design speeds of nuclear power plants in China

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DOI	10.1007/s11069-021-04627-7
	Tornado-resisting design speeds of nuclear power plants in China
	Tian Y.; Li B.; Yang Q.; Liu M.
发表日期	2021
ISSN	0921030X
起始页码	1251
结束页码	1271
卷号	107 期号:2
英文摘要	More and more nuclear power plants are being constructed in China, while the nationwide intensity regions with tornado-resisting design speeds are not specified. With the development of tornado damage investigations, more records of tornado events have been accumulated, which makes it possible to establish the probability distribution model of tornado speed and predict the design wind speeds of nuclear power plants. This paper summarizes the derivation of probability distribution of tornado speed based on the parameters of mean occurrence rate, intensity rating, path length and width. The tornado events in China are introduced, while the geographical distribution of tornadoes is described. The mean occurrence rates for each local region with square of 1° longitude and latitude are obtained by moving average method. The records of tornado events, which experienced post-disaster investigations and scattered in research articles, dissertations and yearbooks, are collected and revaluated. Using the accepted tornado records, both the probability distribution of path area and the joint probability distribution between tornado speed and path area are established. The equivalent speeds corresponding to different annual exceedance probabilities are calculated. The suggestions of intensity regions for tornado-resisting design of NPPs in China are proposed. The uncertainties of design wind speeds are simulated by Monte Carlo simulation method. It is indicated that the most significant impact on the uncertainties of design speeds originates from the variation of equivalent speed. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Annual exceedance probability Equivalent speed Nuclear power plant Tornado intensity region Tornado record
英文关键词	design; geographical distribution; Monte Carlo analysis; nuclear power plant; probability; tornado; wind velocity; China
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206607
作者单位	School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China; School of Civil Engineering, Chongqing University, Chongqing, 400044, China; Beijing’s Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing, 100044, China
推荐引用方式 GB/T 7714	Tian Y.,Li B.,Yang Q.,et al. Tornado-resisting design speeds of nuclear power plants in China[J],2021,107(2).
APA	Tian Y.,Li B.,Yang Q.,&Liu M..(2021).Tornado-resisting design speeds of nuclear power plants in China.Natural Hazards,107(2).
MLA	Tian Y.,et al."Tornado-resisting design speeds of nuclear power plants in China".Natural Hazards 107.2(2021).