CN219973278U - Underground pedestrian passageway fireproof structure - Google Patents
Underground pedestrian passageway fireproof structure Download PDFInfo
- Publication number
- CN219973278U CN219973278U CN202320978286.5U CN202320978286U CN219973278U CN 219973278 U CN219973278 U CN 219973278U CN 202320978286 U CN202320978286 U CN 202320978286U CN 219973278 U CN219973278 U CN 219973278U
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- Prior art keywords
- pedestrian passageway
- underground pedestrian
- underground
- fire
- fireproof
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- 239000000779 smoke Substances 0.000 claims description 20
- 230000002265 prevention Effects 0.000 claims description 9
- 238000005034 decoration Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses an underground pedestrian passageway fireproof structure which comprises functional areas, wherein two adjacent functional areas are communicated through an underground pedestrian passageway, a fireproof partition is arranged at the joint of each functional area and the underground pedestrian passageway, the underground pedestrian passageway and the fireproof partition are surrounded by a firewall, fireproof partition doors are arranged on the firewall at the passing side of the fireproof partition for personnel, and the underground pedestrian passageway and the functional areas can be communicated or isolated by opening or closing the fireproof partition doors. The utility model can ensure that the underground sidewalk has good fireproof performance and personnel evacuation performance.
Description
Technical Field
The utility model relates to the technical field of building fireproof, in particular to an underground pedestrian passageway fireproof structure.
Background
Currently, urban construction is under tension, various underground spaces are developed in a large area, and underground communication channels for communicating functional plots are often arranged between different functional areas to serve as pedestrian passages in order to facilitate convenient communication between the functional areas.
Because each functional area and the pedestrian passageway are limited by ground conditions and underground space, the arrangement of the entrance, the width and the length of the underground pedestrian passageway can not meet the safety evacuation of people, and the continuous spreading risk of fire is increased.
Disclosure of Invention
In order to solve the problems in the prior art and overcome the defects in the prior art, the utility model provides the fireproof structure of the underground pedestrian passageway, which can ensure that the underground pedestrian passageway has good fireproof performance and personnel evacuation performance.
The aim of the utility model is achieved by the following technical scheme.
The utility model discloses a fireproof structure of an underground pedestrian passageway, which comprises functional areas, wherein two adjacent functional areas are communicated through the underground pedestrian passageway, a fireproof partition is arranged at the joint of each functional area and the underground pedestrian passageway, the underground pedestrian passageway and the fireproof partition are surrounded by a firewall, the firewall at the personnel passing side of the fireproof partition is provided with a fireproof partition door, and the underground pedestrian passageway and the functional areas can be communicated or isolated by opening or closing the fireproof partition door.
The underground pedestrian passageway is provided with an access opening which can be directly communicated with the outside, and the clear width of the underground pedestrian passageway is not less than 5m.
The floor, the wall surface and the top plate of the underground pedestrian passageway are all provided with A-level decoration material layers, the top plate of the underground pedestrian passageway is a floor slab of the upper layer, the fire resistance limit of the floor slab is not lower than 1.50h, and the fire resistance limit of the firewall is not lower than 3.00h.
The building area of the fireproof partition is not less than 6m 2 。
The fireproof separation door adopts a first-class fireproof door.
And a mechanical smoke discharging system is arranged in the underground pedestrian passageway.
An automatic water spraying fire extinguishing system is arranged in the underground pedestrian passageway.
An automatic fire alarm system is arranged in the underground pedestrian passageway.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the underground pedestrian passageway is used for communicating two adjacent functional areas, fireproof compartments are arranged at two ends, connected with the functional areas, of the underground pedestrian passageway, fireproof walls are adopted for the fireproof compartments and the walls of the underground pedestrian passageway, fireproof separation doors are arranged on the fireproof walls on the passing sides of personnel, and the underground pedestrian passageway and the functional areas can be communicated or isolated by opening or closing the fireproof separation doors; the underground pedestrian passageway is also provided with an access opening which can be directly communicated with the outside, so that the structure of the utility model ensures that the underground pedestrian passageway has good fireproof performance and personnel evacuation performance.
Drawings
Fig. 1 is a schematic view of the structure of the fire-proof structure of the underground pedestrian passageway of the present utility model.
Reference numerals: 1-functional areas, 2-fire-protection compartments, 3-underground walkways,
4-access, 5-firewall, 6-fire-proof separating door.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the fire-proof structure of the underground pedestrian passageway of the present utility model comprises a functional area 1, a fire-proof compartment 2, an underground pedestrian passageway 3, an entrance 4, a fire wall 5 and a fire-proof partition door 6. Two adjacent functional areas 1 are communicated through an underground pedestrian passageway 3, a fireproof compartment 2 is arranged at the joint of each functional area 1 and the underground pedestrian passageway 3, the underground pedestrian passageway 3 and the fireproof compartment 2 are surrounded by a firewall 5, the firewall 5 at the personnel passing side of the fireproof compartment 2 is provided with a fireproof separating door 6, the underground pedestrian passageway 3 and the functional areas 1 can be communicated or isolated by opening or closing the fireproof separating door 6, and the fireproof structure of the underground pedestrian passageway can ensure that the underground pedestrian passageway has good fireproof performance and personnel evacuation performance
In the above structure, the underground pedestrian passageway 3 is provided with the entrance 4 which can be directly communicated with the outside, the entrance 4 is preferably arranged at two ends close to the underground pedestrian passageway 3, the clear width of the underground pedestrian passageway 3 is not less than 5m, the safe evacuation of people can be effectively ensured, and the crowding in the evacuation process is avoided, so that the difficulty in evacuating people is avoided.
In the structure, the ground, the wall surface and the top plate of the underground pedestrian passageway 3 are all provided with A-level decoration material layers, so that the fireproof performance of the underground pedestrian passageway 3 is ensured.
The roof of the underground pedestrian passageway 3 may be a floor slab of a previous building, the fire resistance limit of the floor slab should not be lower than 1.50h, and the fire resistance limit of the firewall 5 should not be lower than 3.00h, so as to prevent fire from spreading between the functional area 1 and the underground pedestrian passageway 3.
In the above structure, the building area of the fireproof compartment 2 is not less than 6m 2 The fireproof separation door 6 adopts a class A fireproof door, so that the fireproof isolation effect can be effectively ensured.
In the above structure, a mechanical smoke exhaust system is arranged in the underground pedestrian passageway 3, and the mechanical smoke exhaust system comprises a smoke exhaust port, an air duct and a smoke exhaust fan. The underground pedestrian passageway 3 is divided into a plurality of smoke prevention subareas according to the length of not more than 36m, a plurality of smoke outlets are uniformly formed in the top of each smoke prevention subarea, and smoke in each smoke prevention subarea can be discharged outdoors through the smoke outlets, the air duct and the smoke exhaust fan in sequence. The smoke exhaust fan can ensure that smoke exhaust ports in three adjacent smoke prevention subareas are simultaneously opened to realize the required smoke exhaust amount. The mechanical smoke exhaust system can timely exhaust smoke when a fire disaster occurs, so that the smoke is prevented from causing difficulty in the process of withdrawing people and extinguishing the fire.
In the structure, the automatic water spraying fire extinguishing system is arranged in the underground pedestrian passageway 3, and the automatic water spraying fire extinguishing system adopts the quick response spray head, so that the initial fire can be extinguished in time, and the fire is prevented from spreading.
In the structure, the automatic fire alarm system is arranged in the underground pedestrian passageway 3, so that an alarm signal can be timely sent out in case of fire, and people can be warned to evacuate rapidly.
Although the function and operation of the present utility model has been described above with reference to the accompanying drawings, the present utility model is not limited to the above-described specific functions and operations, but the above-described specific embodiments are merely illustrative, not restrictive, and many forms can be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the appended claims, which are included in the protection of the present utility model.
Claims (8)
1. The utility model provides an underground pedestrian passageway fireproof structure, includes functional area (1), its characterized in that, two adjacent functional area (1) are through underground pedestrian passageway (3) intercommunication, every functional area (1) all are provided with fire prevention compartment (2) with underground pedestrian passageway (3) junction, underground pedestrian passageway (3) and fire prevention compartment (2) are enclosed by firewall (5), fire prevention division door (6) are all installed by firewall (5) of fire prevention compartment (2) confession personnel traffic side, open or close fire prevention division door (6) can communicate or keep apart underground pedestrian passageway (3) and functional area (1).
2. The underground pedestrian passageway fireproof structure according to claim 1, characterized in that the underground pedestrian passageway (3) is provided with an access opening (4) which can be directly communicated outdoors, and the clear width of the underground pedestrian passageway (3) is not less than 5m.
3. The underground pedestrian passageway fireproof structure according to claim 1, wherein the ground, the wall surface and the top plate of the underground pedestrian passageway (3) are all provided with a class-a decoration material layer, the top plate of the underground pedestrian passageway (3) is a floor slab of the upper layer, the fire resistance limit of the floor slab is not lower than 1.50h, and the fire resistance limit of the firewall (5) is not lower than 3.00h.
4. Underground pedestrian passageway fire protection structure according to claim 1, characterized in that the fire protection compartment (2) has a building area of not less than 6m 2 。
5. Underground pedestrian passageway fire protection structure according to claim 1, characterized in that the fire protection division door (6) is a fire protection door of class a.
6. The underground pedestrian passageway fire protection structure of claim 1, wherein a mechanical smoke evacuation system is provided in the underground pedestrian passageway (3).
7. The underground pedestrian passageway fireproof structure according to claim 1, characterized in that an automatic sprinkler system is provided in the underground pedestrian passageway (3).
8. The underground pedestrian passageway fireproof structure according to claim 1, characterized in that an automatic fire alarm system is provided in the underground pedestrian passageway (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320978286.5U CN219973278U (en) | 2023-04-26 | 2023-04-26 | Underground pedestrian passageway fireproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320978286.5U CN219973278U (en) | 2023-04-26 | 2023-04-26 | Underground pedestrian passageway fireproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219973278U true CN219973278U (en) | 2023-11-07 |
Family
ID=88590501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320978286.5U Active CN219973278U (en) | 2023-04-26 | 2023-04-26 | Underground pedestrian passageway fireproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219973278U (en) |
-
2023
- 2023-04-26 CN CN202320978286.5U patent/CN219973278U/en active Active
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