Can the office door open to the stairs?
"High-rise civil building design fire safety norms"
Specification 6.2.5 Stairwell and smoke staircase front room should meet the following requirements:
6.2.5.1 Stairway and smoke staircase The inner wall of the front room shall not be opened except for the evacuation doors leading to public walkways and the doors specified in Article 6.1.3 of this Code.
2 smoke staircase
Specification 7.4.3 Smokeproof stairwell shall comply with the following provisions in accordance with the relevant provisions of Article 7.4.1 of this Code:
????????????? 5 In addition to the staircase door and the front room door, the smoke staircase and the front wall of the front room should not open other doors and windows (except the front staircase in the house);
For the closed staircase and smoke staircase, is certainly not, there are basis:
"Architectural design code for fire protection"
1 closed staircase
Specification 7.4.2 Closed stairwells shall comply with the following provisions in accordance with the provisions of Clause 7.4.1 of this Code:
????????????? 3 In addition to the door of the staircase outside the staircase between the walls should not open other doors and windows openings;