Inborn by means of an appropriate concrete cover, with pretreatment in production site and/or with treatment on site.
Fire resistance of a structural component is achieved either by means of an appropriate thickness of concrete cover or by protecting the exposed reinforcements with fire-retardant or intumescent materials.
In StercheleGroup® PREM system, both ways can be followed depending on the specific requirements.
PLUS
- Concrete cover increasing, where possible, simplifies the work on site and maintenance (i.e. PREM beams with prefabricated base and prefabricated columns).
- Exposed steel structures protecting with fire-retardant or intumescent materials decreases, even greatly, the geometric dimensions (i.e. PREM beams with steel bottom plate and steel concrete composite columns).
RESTRICTIONS
- When the choice of the structural component is carried out for other reasons than its fire resistence.
MOST SUITABLE COMPONENTS
Appropriate cover:
Slabs and walls: all.
Beams: PREM SD a0, PREM SD a2. PREM SD b0, PREM SD b2.
Columns: MANUS bc, PANUS br, PANUS bc.
Fire-retardant or intumescent materials:
(Slabs and Walls: all, but it is never convenient if not in retrofit).
Beams: PREM SD a1.
Columns: MANUS ar, MANUS ac, PAN.
Fire resistance with concrete cover
Fire resistance with appropriate treatment