Legal analysis: 1, the national "Residential Design Code" GB50096-2011 in

Kitchen exhaust volume per hour per household 300-500m?; bathroom exhaust volume per hour per household 80-100m?

2, the national "building design fire code" GB50016-2006

The branch pipe should be set up with the fire damper with the operation temperature of 150 ℃

3, the fire damper should be in accordance with the national "fire damper test method" GB15930

The wells should be set up independently.

4, the national "Design Code for Heating, Ventilation and Air Conditioning" GB50019

Kitchen, bathroom should be set up vertical exhaust ducts, vertical exhaust ducts should be fire prevention, backflow prevention, anti-serial odor and uniform exhaust function.

5, the national "high-rise civil building design and fire code" GB50045

Surface smooth concrete and other non-metallic materials duct, the flow rate <15m/s

6, the national "residential kitchen, bathroom exhaust ducts," JG/T194-2006 industry standards: vertical into the load force should not be less than 90KN; anti-flexible impact; 10kg sandbags 1m high free fall, 5 impacts on the same location, the exhaust tract does not crack; exhaust tract fire-resistant polarity is not less than 1.0h.

7, the national "building ventilation effect test and evaluation standards" C35/T309-2013 industry standards: residential kitchen exhaust ducts exhaust volume per household should not be less than 300m?/h, not more than 500m?/h, and should be fireproof, not backflow; residential Bathroom exhaust ducts per household exhaust volume should not be less than 80m?/h, not greater than 100m?/h, and should be fireproof, not backflow.

Legal basis: "Residential Design Code GB 50096-2011"

2.0.17 natural storeys natural storeys

The number of floors according to the floor, floor structure stratification.

2.0.18 middle-floor middle-floor

The floor between the ground floor of the residence, the entrance floor and the entrance floor of the highest occupant.

2.0.19 open floor open floor

The floor of open space that has only structural support and no external envelope.

2.0.20 corridor gallery

A horizontal passageway used outside the dwelling unit.

2.0.21 Contact gallery inte-unit gallery

Horizontal passageway connecting two adjacent residential units of the building, elevator.

2.0.22 residential building unit

Building parts consisting of multiple dwellings, the occupants of which can be evacuated by **** stairs and safety exits.

2.0.23 basement basement

A space in which the height of the indoor floor below the outdoor ground level exceeds 1/2 of the clear indoor height.

2.0.24 Semi-basement semi-basement

A space in which the height of the indoor floor below the level of the outdoor floor is more than 1/3 and not more than 1/2 of the net height of the interior.

2.0.25 accessory assembly occupancy building accessory assembly occupancy building

Attached to the main building of the residence of the public **** use of the room, including property management rooms, equipment rooms in line with the noise standard, small and medium-sized commercial rooms, do not produce fumes of food and beverage rooms.

2.0.26 equipment floor mechanical floor

The building is designed to set up heating and ventilation, air conditioning, water supply and drainage and electrical equipment and piping construction personnel into the operation of the space layer.