Daxing District installs anti-theft doors and fire doors quickly

Beijing Hongyuanying Industrial and Commercial Management Certificate has been officially approved and has obtained national formal qualifications and has become a member unit of Beijing Interior Decoration Association and Beijing Federation of Industry and Commerce Decoration Industry Chamber of Commerce. The opening direction does not meet the requirements and does not open in the evacuation direction.
The fire resistance limit of the fire door does not meet the requirements. According to the design requirements, a Class B fire door or a Class C fire door should be installed instead of an Armor Class fire door.
Install few or no door closers. Fire doors located in passages and stairwells must be equipped with door closers. Without door closers, they will not meet the normally closed requirements.
Install less hardware accessories. According to the size of the fire door, some of the larger fire doors should be installed with only hinges, some with only hinges, some with only screw holes, some with only screws, which reduces the fixing strength.
The middle seam is large and the two sides are not connected tightly and the separation is not tight, allowing smoke to pass through, and it cannot play the role of fire prevention separation.
The distance from the ground is too large. According to regulations, the distance from the ground to the inner door should be controlled within the range. Some fire doors have as many as 100 meters.
There are many regulations for door gaps.
The steel door frame should be filled with cement mortar or rock wool. Some are empty inside if not filled during installation.
Fire doors stipulate that swing doors are not allowed. Some are deliberately changed to swing doors or even use fire-proof glass to make homemade swing doors, which do not comply with the regulations and cannot play a fire separation role.
The holes on the sides or above the fire door are not blocked. There is a ventilation duct above or on the side of the fire door without a fire damper.
Cracked and uneven door leaves can also be installed as qualified fire doors.
The construction unit makes its own door frames and buys fire-proof door leaves to install. Sometimes the door frame and door leaf do not match, there is no sealing groove, no fire-proof sealing strip, and the frame and door leaf are uneven.
Self-made fire doors have no production standards and have not been inspected by the state.
There are ordinary doors and windows next to the fire door.
Install non-fireproof hardware and door locks.
Poor opening and closing performance: first, the door closer is broken; second, the installation quality is poor. The installation angle of the door closer is incorrect and the hinge is loose.
Some fire doors are rarely equipped with fire seals.
The gap between the fire door frame and the wall was not sealed.
At present, most fire doors are not equipped with sequencers (referring to bi-fold doors).
Fire doors have an additional decorative layer.
Some fireproof glass is broken, and some of the ordinary glass fireproof doors are installed with glass exceeding the specified area to install large glass (not fireproof doors that have passed the specifications tested by the National Fire Products Testing Center).
Failure to install fire doors in accordance with the design drawings and specifications of the fire protection audit opinions (for example, fire doors are installed above the first floor of a high-rise building but no fire doors are installed on the first floor).