Construction 4 Flashcards
Stairs that are not part. Of the means of egress are often referred to as ($$$$$)
Convenience stairs
In buildings ($$$$$) or more stories in height, on stairway is generally required to extend to the roof unless the slope of the roof is especially steep.
Four
($$$$). Safe, continuous path of travel from any point in a structure to a public way.
Means of egress
The MEANS OF EGRSS is composed of three parts
The exit access
The exit
The exit discharge
($$$$$ stair that usually connects two floors in a multi story building
Convenience stair
($$$$$) voiceless distance between the threads of the stairway and the height of the entire stairway.
Rise
($$$$$). The horizontal measurement of a stair tread or the distance of the entire stair length.
Run
($$$$) extend in a straight line for the entire length.
Straight run stairs
($$$$) have an intermediate landing between the floors and reverse direction at that point.
Return stairs
($$$$$) are two separate sets of stairs constructed in a common shaft.
Scissor stairs
($$$$$) are often found as grand stairs or convenience stairs serving only two lengths. The minimum width of the run is usually 10 inches
Circular stairs
($$$$) are usually found in dwellings where they are used to provide access to an attic space that doesn’t have a permanent acces stair.
Folding stairs
($$$$$). This type of stair design allow stairs to be placed in a very small space. Consist of a series of steps spiraling around a single column.
Spiral stairs
($$$$$) stair with code required fire rating enclosure construction.
Protected stair enclosure.
Building codes have traditionally required a minimum of one smoke proof stair enclosure for stairs serving buildings five stories or higher, and more recently, stairs serving more than ($$$$$) below the level of the exit discharge.
30 feet
