钢架结构库房防雷设计
Lightning Protection Design of Steel Frame Structure Warehouse
甘孝明 1刘媛 2周文钰 3周道刚3
作者信息
- 1. 贵阳市花溪区气象局,贵州 贵阳 550025
- 2. 北京仪线连天防雷检测有限公司贵州分公司,贵州 贵阳 550009
- 3. 贵州省气象台,贵州 贵阳 550002
- 折叠
摘要
由金属屋面、金属外皮夹心层围护材料的钢架结构建筑,对雷电临近闪击而言,是一个自然的人工电磁屏蔽体;但当雷电闪击这类建筑物时,支撑建筑的钢架结构金属体内即有直击雷电流通过并入地泄流,可能导致建筑内部二次雷电感应雷击事故.在建筑外表添加安装与其金属体绝缘防直击雷装置,拦截直击雷击电流并将拦截到的雷电流分流屏蔽入地,完全能避免雷电击在建筑物本体上,有效地避免二次雷电感应危害.
Abstract
A steel frame structure building made of metal roof and metal sandwich layer enclosure material is a natural artificial electromagnetic shielding body for lightning near lightning strikes;But when lightning strikes such buildings,there is a direct lightning current flowing through the metal body of the steel frame structure supporting the building,which may lead to secondary lightning induced lightning accidents inside the building.Adding insulation devices to the exterior of buildings to prevent direct lightning strikes,intercepting direct lightning current and diverting and shielding the intercepted lightning current to the ground,can completely prevent lightning strikes on the building body and effectively avoid secondary lightning induction hazards.
关键词
金属屋面/防雷装置/绝缘防雷/电磁屏蔽Key words
metal roof/lightning protection device/insulation lightning protection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据