论文部分内容阅读
针对大型地铁换乘车站的共用站厅面积超大问题,从防火分隔、防排烟方面给出控制措施。采用FDS数值模拟方法,分析了共用站厅烟气控制效果。数值模拟结果表明,防火卷帘采用二次降落模式,火灾和烟气蔓延范围可以得到有效控制。建议换乘车站共用站厅面积超过5 000 m2时,在站厅层公共区设置二次降落防火卷帘,既保证火灾初期人员疏散的通畅性,又保证挡烟的有效性和防火分隔的完整性。
Aiming at the oversized area of common station and hall in the transfer station of large subways, the control measures are given from the aspects of fire separation and smoke control. FDS numerical simulation method was used to analyze the effect of flue gas control in common station. Numerical simulation results show that the fire shutter with secondary landing mode, fire and smoke spread can be effectively controlled. It is suggested that a secondary landing fire shutter should be set up in the public area of the station and lobby when the area of common station for transfer station is more than 5 000 m2, so as to ensure the evacuation of personnel in the early stage of the fire and ensure the effectiveness of the smoke blockage and the integrity of the fire separation Sex.