Prefabricated Fire Protection Opening in Buildings
Prefabricated fire protection openings in buildings are holes or other types of interfaces in vertical circulation equipment between the interior and exterior of the building, used for firefighting access or firefighting operations, and are an important measure for building safety management. The following provides a detailed introduction from the aspects of setting purposes, locations, requirements, handling methods, and daily maintenance:
Setting Purposes: In the event of a fire, these openings provide firefighters with timely access to the fire scene to carry out firefighting and rescue operations, ensuring the safety of personnel and reducing property losses.
Setting Locations: These openings are typically located in public areas such as stairwells or corridors on each floor, which facilitate quick access and use by firefighters. They are generally not set in residential bedrooms to avoid interference with residents' daily lives and potential safety risks.
Setting Requirements: Each fire compartment along the exterior wall should have no fewer than 2 fire rescue openings within the corresponding fire rescue operation area; buildings without exterior windows should have fire rescue openings on each floor, while buildings with exterior windows should have them on each floor starting from the third floor; the net height and net width of fire rescue openings should be no less than 1.0m, and when using doors, the net width should be no less than 0.8m; fire rescue openings should be easily openable or breakable from both the interior and exterior, and when using glass windows, safety glass should be selected; fire rescue openings should be equipped with permanently visible signs that can be identified from both the interior and exterior. In addition, the cutting of fire openings should start with on-site surveys to confirm floor slab thickness, steel bar distribution, and concrete strength, avoiding concealed conduits and water pipes; then, based on design requirements, mark and position the openings to determine their size and location; during cutting, equipment such as water drills or wire saws are often used, along with industrial-grade dust extraction or water cooling devices to reduce dust and noise; in areas with dense steel bars, the cutting sequence should be adjusted to prevent jamming or structural damage; after cutting, the edges should be smoothed, and if necessary, anti-rust and fire-resistant coatings should be applied, with some projects also requiring the installation of firestops or fire-blocking panels.
Handling Methods: Under the premise of ensuring safety, fire reserve openings can be left as is without any treatment; doors, either transparent or opaque, can also be installed in front of the openings according to needs, which should meet safety requirements while maintaining the overall aesthetics of the building; installing cover plates or fire shutters is also one of the most commonly used methods for handling reserve openings, which can meet safety requirements and maintain overall aesthetics.
Daily Maintenance: Regularly inspect fire reserve openings to ensure that any blocking measures such as panels or doors can be promptly identified and removed during hole removal operations, ensuring that fire passages remain unobstructed.
