1, the height difference between the basement and the outdoor entrance floor should not be greater than10.0m;

2, a hall, room construction area should not be greater than 200m2, and should use the fire resistance limit of not less than 2.00h incombustible partition +0.00h incombustible floor separated from other parts, hall, room evacuation door should be set up class B fire door;

3. Smoke control facilities should be set up.