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《Journal of Shanghai Jiaotong University》 2005-S1
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The Magnetic Field Distribution in Buildings with Separate Lightning Down Conductors during a Direct Lightning Stroke

FU Zheng-cai, XU Lin(School of Electronic, Information and Electrical Eng., Shanghai Jiaotong Univ. , Shanghai 200030, China)  
In buildings with separate external lightning down conductors, very high magnetic fields may occur in some area during a direct lightning stroke. Based on the circuit approach, this paper investigated the distribution of the magnetic fields in such buildings during the stroke. The lightning down conductor and the building's metal framework branches are simulated by a series of coupled π-type circuits. The frequency-dependent performance of the circuit parameters and the effect of the earth were considered. The effectiveness of the simulations were evaluated on a scaled model of such building in laboratory through induced current and magnetic field measurements. Based on the analysis of the simulations, the characteristics of magnetic field distributions in such buildings under lightning strokes were disclosed.
【CateGory Index】: TU856
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Chinese Journal Full-text Database 2 Hits
1 Wang Qing Fu Zhengcai (Shanghai Jiaotong University 200030 China)Du Yaping (The Hong Kong Polytechnic University China);Conducting Structure's Influence on Magnetic Fields in a Building Struck by Lightning[J];Building Electricity;2001-03
2 Zhang Xiaoqing, Chen Shuiming, Wu Weihan Department of Electrical Engineering, Tsinghua University, Beijing 100084;Lightning transient responses involving frequency dependent characteristics in the building steel structure[J];JOURNAL OF TSINGHUA UNIVERSITY(SCIENCE AND TECHNOLOGY);1997-06
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4 CHEN Shuiming, ZHANG Xiaoqing  , WU Weihan Department of Electrical Engineering, Tsinghua University, Beijing 100084; Department of Mechanic and Electric Engineering, Beijing Institute of Civil Engineering and Architecture, Beijing 100044, C;Surge current distribution in a reinforced concrete structure during building struck by lightning[J];JOURNAL OF TSINGHUA UNIVERSITY(SCIENCE AND TECHNOLOGY);1999-05
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