How to calculate the floor area of the basement ventilation shaft?

No cover is not calculated, the cover is larger than the meter to calculate the full area, the meter below the half area, the net height is less than the meter is not calculated area.

The floor height meter is the full area, the meter below the half area, and the net height is less than the meter is not calculated the area.

Technology is no longer an issue.

Summary. Ventilation and exhaust shafts should be incorporated into the natural layer of the building to calculate the area.

Because the "attached wall" can be regarded as the main structure, and the following items in the Code for Calculation of Construction Area of Construction Projects GB T50353-2013 should not be included in the calculation of the construction area: "ventilation and exhaust shaft", and the function of the ventilation and exhaust shaft must be connected with the building components in the building, so the ventilation and exhaust shaft should be incorporated into the natural layer of the building to calculate the area.

Code for Calculation of Construction Area of Construction Works》GB T50353-2013 Does the outdoor air shaft attached to the wall calculate the construction area? (with basement) ventilation and exhaust shafts, which should be incorporated into the natural layer of the building to calculate the area. Because the mountain liquid is an "attached wall", it can be regarded as the main structure, and the following items in the Code for Calculation of Construction Area of Construction Projects GB T50353-2013 should not be included in the calculation of construction area by auction

Ventilation and exhaust shaft", and the function of the ventilation and exhaust shaft must be connected with the building components in the building, so the ventilation and exhaust shaft should be incorporated into the natural layer of the building to calculate the area of the concealment. Code for Calculation of Construction Area of Construction Projects GB T50353-2013

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1.In the first article of the fire protection code GB50067-97 for the design of garages, garages and parking lots, the fire spacing between garages and first- and second-class civil buildings is 10m. 2.

When the fire spacing of 10m and 13m cannot be met due to constraints, the part of the stairwell and air shaft close to the civil building can be designed as a firewall, and the spacing can be designed according to 4m.

3.In actual engineering, the air shaft and stairwell of the underground garage are often designed in the upper part of the building, and at this time, they are not subject to the above requirements. Extended Resources:

Technical standards and products for the application of building firestop are used in a variety of industry markets, and the concept of passive fire protection advocated by 3M has been widely accepted around the world. At present, the main core technologies of 3M building fireproof plugging application technical standards and products are: thermal expansion, heat absorption, ablation and thermal insulation technology.

It can be applied to fire containment in through-system systems, building joints, pipes, emergency circuits, wood structures, steel fire coatings, and more, and with the 3M Fire Management Plan (FMS) application, facility managers can take control of their operations, improve compliance and streamline inspections.

Requirements for the distance between the basement exhaust shaft and the building.

This one. Then the nearest should be 10 meters away from the building.

1.In the first article of the fire protection code GB50067-97 for the design of garages, garages and parking lots, the fire spacing between garages and first- and second-class civil buildings is 10m. 2.

When the fire spacing of 10m and 13m cannot be met due to constraints, the part of the stairwell and air shaft close to the civil building can be designed as a firewall, and the spacing can be designed according to 4m. 3.In actual engineering, the air shaft and stairwell of the underground garage are often designed in the upper part of the building, and at this time, they are not subject to the above requirements.

Extended Information: Technical standards and products for the application of building fire barriers are used in various industry markets, and the concept of passive fire protection advocated by 3M has been widely accepted around the world. At present, the core technologies of 3M building fire prevention field ruler have not blocked the application of technical standards and products

Thermal expansion, endothermy, ablation and adiabatic technology. It can be used in areas such as fire containment of through-through systems, fire protection of building joints, fire protection of pipelines, fire protection of emergency circuits, fire protection of wood and steel structures, and can be used in conjunction with the 3M Fire Management Plan (FMS) program to help facility managers control their operations, improve compliance and simplify the inspection process.

Hello, glad to do a check for you. The exhaust vents should not face the openable external windows of adjacent buildings; When the distance between the exhaust outlet and the activity place of the personnel is less than 10m, the height of the bottom of the exhaust outlet towards the personnel activity site and the activity floor of the branch line should not be less than 2 5m 。

In other words, if it is not facing the place of human activity, the height can be dispensed with. Hope my examination is helpful to you

It needs to be calculated.

The construction area of basements, semi-basements, etc. and corresponding entrances and exits shall be calculated according to the horizontal area of the periphery of the outer wall of the upper entrance (excluding the lighting well, moisture-proof layer and its protective wall). Elevator shafts, lifting shafts, garbage chutes, pipe shafts and attached wall chimneys are all calculated according to the natural layer of the building.

For stairwells, water tank rooms, elevator machine rooms, etc., which protrude from the house, the construction area shall be calculated according to the horizontal area of the periphery of the enclosure structure. For an overhead corridor with a roof between two buildings, the construction area is calculated according to the projected area of the corridor. Uncovered overhead corridors are calculated as half of their projected area.

The nearby wall can be directly taken in a straight line, ignoring the wind shaft. The most important thing to calculate the area is nothing more than two points, one is the top cover and the other is the enclosure structure, generally there is an enclosure structure and a top cover, so the full calculation area, and the general area with a roof and no maintenance structure. Of course, some minor parts are not considered area, just refer to the answer below.

4. Underground buildings and overhead layers.

The floor area of basements and semi-basements (including the corresponding entrances and exits with permanent roofs) shall be calculated according to the horizontal area enclosed by the outer edge of the outer wall entrance (excluding the lighting well, the external wall moisture-proof layer and its protective wall). If the floor height is above and above, the full area should be calculated; If the floor height is insufficient, 1 2 area should be calculated. The height of the ground level of the room lower than the outdoor ground level exceeds the net height of the room 1 2 is the basement; The height of the floor level of the room below the outdoor ground level exceeds 1 3 of the clear height of the room, and does not exceed 1 2 is a semi-basement; A permanent top cover is a design that has been approved for permanent use.

This is the original text of the rules for calculating the floor area, and it is said that it is not counted as a lighting well.

Specification for calculating the construction area of construction projects: basements, semi-basements (workshops, shops, stations, garages, warehouses, etc.), including the corresponding entrances and exits with permanent roofs, shall be calculated according to the horizontal area of the outer edge of the outer wall (excluding lighting wells, exterior walls, moisture-proof layers and their protective walls). The full area of the storey height is calculated at and above, and vice versa 1 2.

Indoor stairwells, elevator shafts, sightseeing elevators, lifting shafts, pipe shafts, ventilation and exhaust shafts, garbage chutes, and attached wall chimneys in the building should be calculated according to the natural layer of the building.

Natural Floor: Generally refers to a floor designed by drawings.

There is no requirement for the calculation of the floor area of the civil air defense staircase in the construction area calculation specification, which is to go to the general regulations.