通过对古建筑防雷现状的调查研究,提出古建筑物的重要性、年预计雷击次数、自身结构、内部环境变化、雷击史是评估古建筑雷击风险的主要项目,并确定了各个项目的风险系数.根据风险系数给出了古建筑物雷电防护等级的计算公式.%According to the investigation and study on current state of lightning protection of ancient architectures, significance, estimated annual number of lightning strokes, self structures, internal environment changes and the history of lightning strokes of ancient architectures are proposed as the main items of their risk assessment of lightning. Risk coefficients of each item are determined meanwhile. Formula for calculating the grade of lightning protection of ancient architecture is given according to the risk coefficients.
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