When building construction, the angle of the stairs has no standard requirements?
Stairs: angle at 20. ~ 45. Between the comfortable slope of 26.34 ', that is, the aspect ratio of 1/2.
Stairs location to determine
1. Stairs should be placed in the obvious and easy to find the site
2. Stairs should not be placed on the corners and sides of the building to facilitate the delivery of the load
3. Stairs should have direct lighting and natural ventilation
4. Five floors and above the staircase of the building, the bottom should be set up entrance; in the four floors and below the building, the staircase can be placed from the entrance is not greater than 15m
Step width (b), high (h) should meet one of the following relationships:
B + h = 450 mm b + 2h = 600 to 620 mm
The width of the ladder is preferably not less than 150mm
The state is certainly related to the provisions, but to see whether the developers to comply with it
There are provisions: the standard staircase angle should be moderate, steering platform for the rest; staircase height should also note: high in the 22 cm up and down, the surface in 15 cm above the angle of 45 degrees; staircase should be set up handrails. Public walkways and stairs should meet fire requirements.
