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AAR 2198 BUILDING CONSTRUCTION AND MATERIAL 3 FIRE PROTECTION FOR STEEL STRUCTURE
FIRE PROTECTION
WHY do we protect steel structures from fire?
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
Primary objectives: •Save lives by allowing evacuation of people •Allow safe access for fire fighters •Protect the building from structural failure
FIRE PROTECTION
Structural steel can be fire protected by a variety of methods including: 1.Concrete encasement 2. Fire resistant boards, 3. Cementitious, 4. Sprayed inorganic materials 5. Intumescent coatings.
FIRE PROTECTION
These methods are commonly referred to as passive fire protection. Their function is to insulate the steel in a fire situation and increase the time before the steel loses its design margin of safety. This usually occurs at a steel temperature of around 400°C - 600°C. All commonly used building materials may lose some strength when exposed to fire. Concrete may spall to expose reinforcement, wood depletes by charring and steel starts to lose its load bearing capacity.
FIRE PROTECTION
Each country has its own building regulations and design codes, which broadly state that the load bearing elements of a building shall be capable of resisting fire for the advised period without loss of stability in the event of fire. The period of fire protection is normally 30 minutes, 60 minutes, 90 minutes or 120 minutes. This duration is dependent on the building use, type, size and overall height.
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
METHODS FOR FIREPRROFING STEEL COLUMNS: 1. Encasement in Reinforced Concrete 2. Enclosure in metal lath and plaster 3. Enclosure in multiple layers of gypsum board 4. Spray-on fireproofing 5. Loose insulation fill inside a sheet metal 6. Water-filled box column made of a wide-flange shape with added steel plates
Encasement in Reinforced Concrete
Spray-on fireproofing
Enclosure in metal lath and plaster
Loose insulation fill inside a sheet metal
Enclosure in multiple layers of gypsum board
Water-filled box column made of a wide-flange shape with added steel plates
Encasement in Reinforced Concrete
Enclosure in metal lath and plaster
Enclosure in multiple layers of gypsum board
Spray-on fireproofing
Spray-on fireproofing
Loose insulation fill inside a sheet metal (flexible blanket protection system)
Water-filled box column made of a wide-flange shape with added steel plates
Enclosure in metal lath and plaster
Intumescents Coating
Firetherm Top seal
Firefilm
FIRE PROTECTION
METHODS FOR FIREPRROFING STEEL BEAMS AND GIRDERS: 1. Encasement in Reinforced Concrete 2. Enclosure in metal lath and plaster 3. Rigid slab fireproofing 4. Spray-on fireproofing 5. Suspended plaster ceiling 6. Flame-shielded exterior spandrel girder with spray-on fireproofing inside
FIRE PROTECTION
Encasement in Reinforced Concrete
Spray-on fireproofing
Enclosure in metal lath and plaster
Suspended plaster ceiling
Rigid slab fireproofing
Flame-shielded exterior spandrel girder with spray-on fireproofing inside
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
FIRE PROTECTION
METHODS FOR FIRE PROTECTION: 1. Sprays Coating 2. Boards and Similar Casings 3. Lined Steel Sheet Casing 4. Intumescents
FIRE PROTECTION
PRODUCT
MANUFACTURER/SUPPLIER
LOCAL AGENT
FIRE PROTECTION PRODUCT
MANUFACTURER/SUPPLIER
LOCAL AGENT
FIRE PROTECTION
PRODUCT
MANUFACTURER/SUPPLIER
LOCAL AGENT
FIRE PROTECTION PRODUCT
MANUFACTURER/SUPPLIER
LOCAL AGENT
FIRE PROTECTION
METHODS FOR FIRE PROTECTION: 1. Sprays Coating 2. Boards and Similar Casings 3. Lined Steel Sheet Casing 4. Intumescents
