GB 50067-2014 第5.1.9条
| **** | The evacuation stairs of garages and repair garages shall comply with the following provisions:<br>1. High-rise garages with a building height greater than 32m, and underground garages where the height difference between the indoor floor and the outdoor entrance/exit ground level is greater than 10m, shall use smoke-proof stairwells;<br>2. Other garages and repair garages shall use enclosed stairwells;<br>3. The doors of stairwells and vestibules shall open in the direction of evacuation;<br>4. The width of evacuation stairs shall not be less than 1.1m. |