Construction 2 Flashcards
All building codes classify buildings by construction type. These classifications are based on two attributes of the building construction: ($$$$) and ($$$$$$)
Fire resistance
Combustibility
($$$$$) determines the likelihood of structural collapse under fire conditions.
Fire resistance
The ($$$$$) nature to the buildings structural system will impact the rate of fire growth.
Combustible
($$$$) a rating assigned to a material or assembly after standardized testing by an independent testing organization that identifies the amount of time a material or assembly will resist a a fire measure on a standard time temperature curve.
Fire resistance rating
($$$$) is the ability of a structural assembly to maintain its load bearing capacity and structural integrity under fire convictions.
Fire resistance
NFPA 251
Standard methods of test of fire endurance of building construction material
A building code will typically require that columns support floors in fire resistive buildings have a fire resistance rating of ($$$$$)
3 hours
The walls enclosing an exit stairwell, which may or may not be load bearing, typically must have a fire resistive rating of ($$$$) to protect the stairwell.
1 to 2 hours
Under writers laboratories annually publishes a ($$$$$), which lists assemblies that have been tested and their fire resistance ratings.
Fire resistance directory
($$$$) incapable of supporting combustion under normal circumstances
Non combustible
In ($$$) construction, the structural members are of non combustible construction that has a specified fire resistance.
Type I fire resistive
Type I
Bearing walls, columns, and beams are required to have a fire resistance of ($$$$)
Floor construction is qui red to have a fire resistance of ($$$$$)
Interior partition enclosing stairwells and corridors are required to have a fire resistance of ($$$$$$)
2 to 4 hours
2 to 3 hours
1 to 2 hours
Some building codes retain a provision to omit the fire resistive rating for the roof construction for some occupancies when the roof is located more than ($$$$) above the floor
20 feet
The two most common type of constructing Type I buildings are by using ($$$$$$) or a ($$$$$$$) frame
Reinforced concrete
Forte cited steel
In the CSS of a steel frame building, it must be remembered that unprotected steel has ($$$$) fire resistance
No