Complex partition
The term complex partition comes from fire insurance and limits the various risks to individual “complexes”. This means that every fire risk can be classified according to different tariffs. For example, a company can be divided into production (high risk) and an administrative area (low risk). So that the insurer does not rate the entire operation according to the highest risk ( PML = Probable Maximum Loss), i.e. the estimated probable maximum loss, its calculation allows a separate calculation according to the various risks, provided that a complex partition wall delimits the areas. Higher demands are made on complex partition walls than on fire walls .
features
Walls are recognized as complex partition walls if they meet the requirements of the leaflet “Fire and Complex Partition Walls” ( VdS 2234) with regard to their arrangement and design (e.g. connections to ceilings and supports or reinforcements). In the following overview, complex walls are separated from fire walls:
| features | Fire barrier | Complex partition |
|---|---|---|
| Fire protection requirements at least | F 90 | F180 |
| For buildings of the same height, the fire wall must protrude over the roof | ≥ 30 cm, ≥ 50 cm in industrial buildings | ≥ 30 cm, 80 cm recommended |
| Minimum wall thickness made of masonry (single-shell design) | 24 cm | 36.5 cm |
| Minimum thickness walls made of unreinforced concrete (single-shell) | 20 cm | 24 cm to 30 cm |
| Minimum thickness walls made of reinforced concrete (non-load-bearing) | 12 cm | 18 cm |
| Minimum thickness walls made of reinforced concrete (load-bearing) | 14 cm | 20 cm to 30 cm |
| The wall must lead through all floors without being offset | Yes | Yes |
| Minimum distance to storage of flammable substances in the open air | 20 m | 20 m |
| Minimum distance between buildings or outdoor storage of non-combustible materials | 5 m | 5 m |
literature
- Hans Michael Bock, Ernst Klement: Fire protection practice for architects and engineers Fire protection regulations and current planning examples. 3rd edition, Beuth Verlag, Berlin 2011, ISBN 978-3-410-21646-9 .
- Ulf-Jürgen Werner: Structural fire protection. Planning - dimensioning - execution, Springer Verlag, Basel 2004, ISBN 978-3-0348-9596-5 .
- Henry Portz: Fire and Explosion Protection from AZ Explanation of terms and fire protection characteristics. Springer-Verlag, Berlin 2015, ISBN 978-3-322-80197-5 .
See also
Web links
- Fire and complex partition walls Information sheet for the arrangement and execution (accessed on March 20, 2020)
- Leaflet No. 7 Fire protection with precast concrete parts (07/2017) (accessed on March 20, 2020)
- Preventive fire protection (accessed March 20, 2020)
- Fire protection with masonry (accessed on March 20, 2020)
- Fire walls made of steel fiber reinforced concrete (accessed on March 20, 2020)