基于烟气羽流分析模拟的大型会展中心建筑钢结构防火设计研究  

Research on Fire Protection Design of Steel StructuresS1n Large Exhibition Center Buildings Based on Smoke Plume Analysis and Calculation

作　　者：黄兆赫 黄鑫 阚强 宋文华[4] Huang Zhaohe;Huang Xin;Kan Qiang;Song Wenhua(Tianjin Binhai Hi-Tech Industrial Development Area Fire Rescue Detachment,Tianjin 300384,China;Key Laboratory of Civil Aviation Thermal Disaster Prevention,Control and Emergency Response,Civil Aviation University of China,Tianjin 300300,China;Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;School of Enoironmental Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津滨海高新技术产业开发区消防救援支队,天津300384 [2]应急管理部天津消防研究所,天津300382 [3]中国民航大学民航热灾害防控与应急重点实验室,天津300300 [4]天津工业大学环境科学与工程学院,天津300387

出　　处：《南开大学学报（自然科学版）》2023年第5期90-93,112,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

摘　　要：大型会展中心建筑钢结构的防火设计是消防安全的核心问题.基于国际标准ISO 16734“烟气羽流分析”提供的计算方法,对天津某大型会展中心的钢结构防火设计进行了计算分析,研究结果表明:“火灾增长速率为0.047 kW/s^(2)”、“自动喷水灭火系统失效”、“火灾最大热释放速率16.9 MW”的火灾场景条件下,展览大厅控制展位高度不超过6 m,其屋顶的钢构件不需进行防火保护;展览小厅控制展位高度不超过3 m,其屋顶的钢构件不需进行防火保护;登录大厅火源距离钢构件17 m时,其屋顶的钢构件不需进行防火保护;展览大厅、展览小厅和登录大厅的屋顶钢构件最高温度为162、236、131℃,均小于研究设定的钢结构失效温度300℃,屋顶钢构件可不进行防火保护.The fire protection design of steel structures in large exhibition center buildings is the core issue of fire safety.Based on the calculation method provided by the international standard ISO 16734"Smoke Plume Analysis",the fire protection design of a steel structure in a large exhibition center in Tianjin was calculated and analyzed.The research results showed that under the fire scenario conditions of"fire growth rate of 0.047 kW/s^(2),"automatic sprinkler system failure",and"maximum heat release rate of 16.9 MW in fire",the exhibition hall controlled the booth height to not exceed 6 m.The steel components of its roof do not require fire protection.The height of the exhibition booth in the exhibition hall should not exceed 3 m,and the steel components on its roof do not require fire protection.When the ignition source in the login hall is 17 m away from the steel components,the steel components on the roof do not need to be protected against fire.The maximum temperatures of the roof steel components in the exhibition hall,exhibition hall,and login hall are 162,236,and 131℃,which are all lower than the set steel structure failure temperature of 300℃in the study.The roof steel components may not be subject to fire protection.

关 键 词：大型会展中心 钢结构防火设计 设定火灾场景 烟气羽流分析 防火保护 

分 类 号：X924.4[环境科学与工程—安全科学]