GB 50019-2015 第6.4.5条
| **** | **Smoke-proof stairwell and its vestibule**: This code does not directly cover smoke control and exhaust (governed by the 《Technical Standard for Smoke Control and Exhaust Systems in Buildings》 GB 51251), but the ventilation system design should avoid conflicts with smoke control zones, and the horizontal distance between supply air outlets and smoke exhaust outlets shall be ≥20m. |