本文選題：年危險(xiǎn)事件次數(shù)　切入點(diǎn)：雷擊大地密度　出處：《電瓷避雷器》2017年05期 　論文類型：期刊論文

【摘要】：雷擊建筑物年危險(xiǎn)事件次數(shù)(ND)主要用于建筑物防雷級(jí)別的劃分和雷擊風(fēng)險(xiǎn)評(píng)估。為了更精細(xì)化計(jì)算ND,通過理論分析,借助Auot CAD采用幾何法模擬計(jì)算,分別對(duì)兩棟相臨建筑物周邊可能存在的三種環(huán)境狀況進(jìn)行了計(jì)算比對(duì),并針對(duì)ND提出了優(yōu)化計(jì)算式。通過分析計(jì)算得知:規(guī)范中的公式和本文中提出的計(jì)算式求得的結(jié)果差異顯著,采用本文中提出的計(jì)算式對(duì)ND進(jìn)行計(jì)算,其結(jié)果的合理性明顯優(yōu)于規(guī)范中的公式,且會(huì)對(duì)評(píng)估的結(jié)果產(chǎn)生直接的影響。同時(shí),分析結(jié)果顯示:在兩棟建筑物3 H相互有影響的狀況下,當(dāng)某建筑物周邊環(huán)境不變時(shí),該建筑物的雷擊危險(xiǎn)事件的次數(shù)隨著自身高度的增加而增大;當(dāng)周邊環(huán)境改變時(shí),該建筑物的雷擊危險(xiǎn)事件的次數(shù)隨著周邊建筑的高度的增加而減小。
[Abstract]:The number of annual dangerous events of lightning strike buildings is mainly used in the classification of lightning protection level of buildings and the assessment of lightning strike risk. In order to calculate ND more meticulously, through theoretical analysis and with the aid of Auot CAD, the geometric method is used to simulate the calculation. The three possible environmental conditions around the two adjacent buildings were calculated and compared. Through analysis and calculation, it is known that the formula in the specification and the formula in this paper are very different. The formula proposed in this paper is used to calculate ND. The rationality of the results is obviously superior to the formula in the specification, and it will have a direct impact on the results of the evaluation. At the same time, the analysis results show that: under the condition that the two buildings have interaction with each other, when the surrounding environment of a building remains unchanged, The number of lightning hazard events increases with the increase of the height of the building, and decreases with the increase of the height of the building when the surrounding environment changes.
【作者單位】： 湖北省防雷中心;
【基金】：湖北省雷電防御專項(xiàng)課題:基于雷電定位系統(tǒng)的雷暴日反演技術(shù)研究(編號(hào):FL-Y-201401)
【分類號(hào)】：TU895

【相似文獻(xiàn)】

相關(guān)期刊論文 前2條

1 傅鐘鵬;;建筑工人實(shí)用數(shù)學(xué) 第二十四講 代數(shù)分析作圖法[J];建筑工人;1986年12期

2 金顯明;;用作圖法計(jì)算表面式空氣冷卻器[J];建筑技術(shù)通訊(暖通空調(diào));1985年04期

相關(guān)會(huì)議論文 前1條

1 張科杰;賀姍;;雷擊非孤立建筑物危險(xiǎn)事件次數(shù)算法研究[A];第31屆中國氣象學(xué)會(huì)年會(huì)S9 第十二屆防雷減災(zāi)論壇——雷電物理防雷新技術(shù)[C];2014年

，

本文編號(hào)：1603859