The business part of the business premises and the warehouse part need to be separated by a firewall, and fire doors should be set up. In addition, the needs of residents are separated from other areas, and the entrances and exits are also separated. All firewall doors are fire doors, with Class B fire doors with frequent traffic and Class A fire doors as partitions. So you need to set it.

1. Fire doors set in places where people often pass in buildings should be normally open. Normally open fire doors should be able to close automatically in case of fire, and have signal feedback function.

2. In addition to the normally open fire doors, normally closed fire doors should be used for fire doors in other positions. Normally closed fire doors should be provided with warning signs such as "Keep the fire doors closed" in their obvious positions.

3, in addition to the tube well access door and residential door, fire door should have self-closing function. Double fire doors should have the function of automatic closing in sequence.

4. In addition to Clause 6.4. 1 1 of this Code (Building Code), the fire doors shall be able to be manually opened inside and outside.

5. When it is set near the deformation joint of the building, the fire door should be set on the side with more floors, and the door leaf should not cross the deformation joint when the fire door is opened.

6. After the fire door is closed, it should have smoke prevention performance.