摘要
侧击雷防护是高层建筑(含超高层)雷电防护的重要内容之一。以第二类防雷建筑为例,结合电气几何模型和雷电流特性,分析了高层建筑侧击雷的雷电流幅值范围及其概率分布特征。结果表明:建筑物越高,雷电侧击概率越大,且与建筑物高度成指数关系增长;建筑物越高,发生雷电侧击的雷电流幅值范围越大。基于此,讨论了防雷工程中常见的侧击雷防护技术问题,为高层建筑的侧击雷防护提供参考。
The flanking-striking lightning protection is one of the important contents of lightning protection for high-rise buildings（including super high-rise building）.Taking the classⅡ lightning protection building as an example,the paper analyzes the flanking-striking lightning current magnitude range and the probability distribution characteristics of high-rise buildings by combining the electrogeometric model and lightning current features.The result shows that the higher the building,the greater the occurrence probability of flanking-striking lightning,and there is an exponential growth relationship between them;the higher the building,the bigger the flanking-striking lightning current magnitude range.The flankingstriking lightning protection technical problems in lightning protection project are discussed,which provides a reference for flanking-striking lightning protection for high-rise buildings.
作者
周国军
梁忠武
尹娟
周延洲
Zhou Guojun Liang Zhongwu Yin Juan Zhou Yanzhou(Xiangxi Meteorological Service, Hunan, Jishou 416000)
出处
《气象科技》
北大核心
2017年第4期761-764,共4页
Meteorological Science and Technology
关键词
高层建筑
侧击雷
雷电流幅值
雷击概率
防护技术
high-rise building
flanking-striking lightning
lightning current magnitude
lightning probability
protection technology
