GB50016, 6.4.3.3 (smoke-proof staircase front room) and the fire elevator lobby front room are used together, the use area of the shared front room: public buildings, high-rise buildings (warehouses), should not be less than 10.0m ²； Residential buildings, not less than 6.0m ²。 The new specification does not specify the situation of the shared front room of scissors staircase and the shared front room of fire elevator.
The use area of the shared front room of GB50016, 7.3.5.2 (fire elevator) and smoke-proof staircase should also comply with the provisions of Article 5.5.28 and 6.4.3 of this specification; (To be abolished) 5.5.28.4 When the shared front room of the scissors staircase is shared with the front room of the fire elevator, the use area of the shared front room should not be less than 12.0m ²， The short side shall not be less than 2.4m.
The building with fire elevator itself includes the underground part.
That is to say, if the scissors staircase shares the front room with the fire elevator front room, it should still be 12m ² In implementation, the shared area is not small at all.
The front room on the first floor shall be directly to the outside or through a special channel to the outside, and fire separation measures shall be taken between the channel and adjacent areas.
The use area of the shared front room of the scissors staircase and the shared front room of the fire elevator in the first class high-rise residential building is 12.0m ² Still 6m ²？ Does the repeal of mandatory provisions mean that they no longer have a normative role? Are other provisions cited by it also abolished? Relevant experts said in the propaganda and implementation that the repealed mandatory provisions in the current engineering construction standards are not directly invalidated and no longer implemented, but are converted into ordinary provisions, otherwise the standards will have a large number of gaps and lose their integrity.
Your interaction is the food of our spirit..
.
The requirements for the use area of the shared front room only describe the use of a single smoke-proof staircase and the fire elevator front room.
The front room of the fire elevator shall meet the following requirements: 1.
The 2.2 fire rescue facilities in GB55037 have adjusted the setting scope, front room and specific requirements of the fire elevator.
As for the relevant requirements of the front room, the new specification also made some adjustments.
Now, only Class C high-rise buildings with a building height of more than 32m are required.
Article 2.2.8 of GB55037, except that the fire elevator in the warehouse corridor, cold storage hall and silo working tower may not be set in the front room, the fire elevator in other buildings shall be set in the front room.
The contents of the underground or semi-basement of the building with fire elevator are deleted.
First, change the parking on each layer to be able to stop at each layer of the service area; Second, the waterproof measures shall not be lower than IPX5; Third, obvious signs are added at the entrance of the first floor; Fourth, the interior decoration materials of the car are changed from non-combustible to Class A, and the standard GB8624 is more rigorous; Fifthly, in addition to the special fire intercom telephone, the terminal equipment of the video monitoring system in the lift car has been added (the general specification for building electrical and intelligent GB55024-2022-5.3 public safety system, the electrical design standard for civil buildings GB51348-2019-14.3 video monitoring system has specific requirements), comrades, remember to click the lower thumb before leaving; If you think the article is good, share it with more friends.
2.2.6 Except for the urban comprehensive pipe gallery, traffic tunnel and indoor mechanical garage without driveway and no people staying, fire elevators shall be set in the following buildings, and the number of fire elevators available in each fire compartment shall not be less than 1: 1 residential buildings with a building height greater than 33m; 25 floors and above and the building area is more than 3000m ² (including the elderly care facilities set on the fifth floor and above in other buildings); 3 Class I high-rise public buildings, Class II high-rise public buildings with a building height greater than 32m; 4 Class C high-rise buildings with a building height greater than 32m; 5 Closed or semi-closed garage with a building height greater than 32m; 6 Except for rail transit engineering, the buried depth is more than 10m and the total building area is more than 3000m ² Underground or semi-underground buildings (rooms).
First, the walkway from the front room to the outside requires fire separation measures; Second, the requirements for the use area of a single fire front room remain unchanged from that of the original specification.
Compared with GB50016, the situation that high-rise industrial buildings need to be equipped with fire elevators has been optimized.
For high-rise buildings (warehouses) with a building height of more than 32m and elevators, one fire elevator should be set in each fire compartment.
The provisions are as follows: GB55037, 7.1.8.7 (smoke-proof staircase front room), the use area of the shared front room with the fire elevator front room, public buildings, high-rise buildings, high-rise warehouses, peacetime civil air defense works and other underground works, Not less than 10.0 ㎡; Residential buildings shall not be less than 6.0 m2.
3 The front room or shared front room shall be separated from other parts by fire doors and fire partitions with a fire endurance of not less than 2.00h.
Except that the opening in the front room of the cargo elevator which is also used as a fire elevator and cannot be equipped with fire doors can be separated by fire shutter, fire shutter or fire glass wall should not be used to replace the fire partition.
2 The usable area of the front room shall not be less than 6.0m ²， The usable area of the shared front room shall comply with the provisions of Article 7.1.8 of this specification; The short side of the front chamber shall not be less than 2.4m.
In addition, the new regulations have also made certain adjustments to the specific requirements of fire elevators.