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当雷直击建筑物时，流过结构钢筋的雷电流将对室内的电子系统产生电磁干扰。对结构钢筋体内电流分布的分析，这是研究雷直击建筑物时室内电磁暂态过程的基础。在简单回顾雷直击建筑物时结构钢筋体内电流分布计算方法的基础上，对三种典型的结构模型进行了电磁暂态分析，得到结构钢筋体内的电流分布。同时，利用冲击大电流发生装置，对这三种结构模型进行了对比性的模拟试验，计算与试验结果能较好吻合。
When lightning strikes a building, the lightning current flowing through the structural steel bar will cause electromagnetic interference to the indoor electronic system. The analysis of the current distribution in the structural steel reinforcement body is the basis for studying the electromagnetic transient process in lightning strikes on buildings. Based on a simple review of the calculation method of the current distribution in the structural reinforcement during lightning strikes on the building, electromagnetic transient analysis was performed on three typical structural models to obtain the current distribution in the structural reinforcement. At the same time, a comparative simulation test was performed on these three structural models using an impact high-current generating device. The calculations and the test results are in good agreement.