年预计雷击次数计算探讨

Discussion on Calculation of Annual Estimated Number of Lightning Strikes

现有规范、文献资料关于防雷计算均基于规则的矩形建筑进行年预计雷击次数计算,建筑形式单一,计算方式过于局限。实际工程设计中,受建筑场地、造型等因素影响,不规则建筑越来越多,对于此类建筑无法按现有方式进行计算,并缺少合适的计算模板。本文利用建筑总平面图及CAD制图辅助不规则建筑年预计雷击次数计算,并给出excel计算模板。

The existing codes and literatures on lightning protection calculations are all based on regular rectangular buildings to calculate the estimated number of lightning strikes per year.The building form is single and the calculation method is too limited.There are more and more irregular buildings affected by factors such as construction site and shape in actual engineering design.For such buildings,it is impossible to calculate according to the existing methods,and there is a lack of suitable calculation templates.In this paper,the general plan of the building and CAD drawing are used to assist in the calculation of the estimated number of lightning strikes for irregular buildings,and an excel calculation template is given.