建筑电气
建築電氣
건축전기
BUILDING ELECTRICITY
2014年
6期
62-65
,共4页
年预计雷击次数%环境因素%防雷分类%滚球法%等效高度%位置因子%环境影响因子%防侧击
年預計雷擊次數%環境因素%防雷分類%滾毬法%等效高度%位置因子%環境影響因子%防側擊
년예계뢰격차수%배경인소%방뢰분류%곤구법%등효고도%위치인자%배경영향인자%방측격
expected annual number of lightning%environmental element%classification of protection against lightning%rolling sphere method%equivalent height%location factor%environmental influence factor%protection against side lightning flash
分析环境因素对建筑物防雷分类的影响,提出从周围建筑物相对高度、建筑物密集程度、建筑物结构、海拔高度、土壤电阻率5个因素综合计算建筑物年预计雷击次数公式中的校正系数,根据滚球法的定义和几何学原理,分析地形对建筑物的影响程度,并用定量计算的方法推导出计算公式,确定建筑物等效高度和防雷分类。
分析環境因素對建築物防雷分類的影響,提齣從週圍建築物相對高度、建築物密集程度、建築物結構、海拔高度、土壤電阻率5箇因素綜閤計算建築物年預計雷擊次數公式中的校正繫數,根據滾毬法的定義和幾何學原理,分析地形對建築物的影響程度,併用定量計算的方法推導齣計算公式,確定建築物等效高度和防雷分類。
분석배경인소대건축물방뢰분류적영향,제출종주위건축물상대고도、건축물밀집정도、건축물결구、해발고도、토양전조솔5개인소종합계산건축물년예계뢰격차수공식중적교정계수,근거곤구법적정의화궤하학원리,분석지형대건축물적영향정도,병용정량계산적방법추도출계산공식,학정건축물등효고도화방뢰분류。
The impact of environmental element on classification of protection against lightning is analyzed. Then relative height, density, structures of surrounding buildings, altitude and earth resistivity are determined to comprehensively calculate the correction coefficient in expected annual number of lightning formula. Impact of terrain on buildings is analyzed according to the definition and geometric principles of rolling sphere method. Then calculation formula is deduced based on the quantitative calculation method to determine the equivalent height and classification of protection against lightning of buildings.