室外步行商业街加盖防风雨篷后的安全性研究  

Study on the Safety of Outdoor Pedestrian Commercial Street with Weather Tent

作　　者：金鑫 JIN Xin(China-Union Kerich Fire Science and Technology Co.Ltd.,Changsha 410004,China)

机构地区：[1]中联科锐消防科技有限公司,长沙410004

出　　处：《工程建设与设计》2022年第11期33-35,共3页Construction & Design for Engineering

摘　　要：为探究室外步行商业街在加盖防风雨篷后的安全性,论文研究加盖防风雨篷不同敞开率对排烟效果影响以及不同环境温度条件下步行街内火灾烟气蔓延情况。结果表明:当防风雨篷的敞开率达到20%,再增加敞开率对步行街内排烟效果影响不大;在防风雨篷的敞开率达到37%,不同环境温度下,商铺火灾产生的烟气不会在防风雨篷下滞留或沉降。In order to explore the safety of outdoor pedestrian shopping street with weatherproof awnings,this paper uses CFD software to conduct numerical simulation,and studies the influence of different opening rates of weatherproof awnings on the smoke exhaust effect and the spread of fire smoke in the pedestrian street under different ambient temperatures.The results show that when the opening rate of the awning reaches 20%,increasing the opening rate has little effect on the effect of smoke exhaust in the pedestrian street.With the canopy open at 37%,smoke from shop fires will not remain or settle under the canopy at different ambient temperatures.

关 键 词：室外步行商业街 防风雨篷 自然排烟 安全性 

分 类 号：TU247[建筑科学—建筑设计及理论] TU89