地下汽车库防排烟若干问题探讨

Discussion on underground garage smoke control

实际工作中遇到的有关地下汽车库防排烟问题,对现行GB 50067《汽车库、修车库、停车场设计防火规范》有关条文进行探讨,提出了在面积不超过2 000 m2的地下汽车库设计时应增设排烟设施,地下汽车库汽车坡道不设防火卷帘、水幕的条件,以及地下汽车库机械排烟系统与机械排风系统合用时,其排烟口和排风口应分开设置的建议。

Through the problems on underground garage smoke control met in the practical work,relevant provisions of GB 50067 ＂Fire Protection Code of Design of Garage,Repair Garage and Parking Lot＂ were discussed.Additional smoke control facilities should be designed in the underground garage with the area no more than 2 000 m2.conditions of underground garage ramp without the fire roller shutter and water curtain were proposed,and smoke exhaust port and ventilation should be set separately was suggested when underground garage mechanical smoke exhaust system in combination with the mechanical ventilation system.