The code establishes a maximum vertical height of 147 inches 12 feet 3 inches between landings or floor levels for a flight of stairs.
Monument stairway code 3 floors.
2 story mostly a3 building 9000 sf first floor 5000 2nd one fire stair one non egress monumental stair and a second floor exit on to a non combustible but open pedestrian bridge not at grade.
Stair tread depth is more of an issue for descending rather than ascending stairs.
If the distance between floor levels exceed 147 inches the flight of stairs would require a level landing somewhere in between to break up the flight of stairs.
Further the tread measurement of every tread in a stairway should be as close as possible to identical.
Hence 4 5 times larger than required.
It was not only the first building in the world to break the half kilometer mark in height but also the world s tallest building from 31 march 2004 to 10 march 2010.
Common questions are stairs that are not part of means of egress required to comply with the standards.
These stairs are approximately 45 in width the 2 walls have handrails and then there are 2 center double sided handrails in the middle.
Sides 6 1 3 5 6 and specify at least 2 but no more than 4 flat steps at escalator entrances and exits 6 1 3 6 5.
As of 18 april 2019 it is still the world s largest and highest use green building.
Taipei 101 comprises 101 floors above ground as well as 5 basement levels.
No interior or exterior stairs that are not part of a required means of egress do not have to meet the standards.
I keep meaning to dig through and see if there s any way the pedestrian bridge could be counted as a means of egress.
Upon its completion taipei 101 was the world s.