牛河梁遗址Ⅱ地点钢结构保护棚建筑为例,分4个场景模拟烟气运动及人员疏散,评估人员疏散的安全性.结果显示人员可以安全疏散.为提高安全性,建议各附属用房采用耐火极限大于3.0 h的防火墙、耐火极限大于1.5 h楼板、防火窗和甲级防火门,并设置超细干粉悬挂式自动灭火装置,防止火灾向其他区城的蔓延.%Base on steel protection shell of the Ⅱ district of NirnuHeLiang ruins, four scenarios were set to simulate the smoke rnmovement and evacuation to evaluate the safety of evacuation.rnThe evacuation is safe according to the simulation results. Sugrngestions were put forward to increase the safety and to prevent rnthe fire spread to the other area like, using fire wall which fire rnresistance is longer than 3 h, using floor and fire window and rnclass A fire door which fire resistance are longer than 1. 5 h,rnsetting suspended Ultrafine powder automatic fire extinguishing rndevices.
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