What is an accessible staircase
Generally refers to: disabled people dedicated channel. Such as the steps into a ramp (you can use a wheelchair)
In the bottom of the armrest to set a height of 50mm security platform to prevent the crutch to slide out to cause a fall.
In the stairs on both sides need to set a high 0.85 ~ 0.90m handrails, handrails to maintain coherence, at the beginning and end to the level of extension above 0.30m, in the up and down the stairs when the action is completed to help the body to maintain balance. In the handrail layer affixed to the Braille description card, told the visual disability where the number of layers and location. Handrails in the form of easy to grasp, to install a strong, can withstand more than one person's weight.
Stepping tread and kick the color to have a clear contrast or change, to arouse the user's alert and help the visually impaired ability. Tread width should reach 0.30m, the height of the kick should not exceed 0.16m.
At the beginning of the step before and after the end of 0.30m, should be set to 0.30 ~ 0.60m wide wide tips blind path, told the visual stairs where the stairs and the starting point and end point. The width and height of stairs and steps of public buildings and residential buildings should be considered for the use of persons with disabilities and the elderly, so the specifications are slightly smaller than those in the General Principles of Civil Building Design (Figure 13).
That is, barrier-free stairs meet the fire requirements, and meet the fire requirements of the stairs may not meet the requirements of barrier-free stairs.
Accessible staircase can be used to evacuate the stairs, but the evacuation stairs are not necessarily accessible staircase, accessible staircase is attached to the usual staircase on the basis of some conditions such as railing and stepping height and wide, mainly for crutches and the elderly Use, see the <Urban Roads and Buildings Accessibility Design Code> and <Old Building Design Code> requirements.
This is an explanation of the staircase and steps in the barrier-free design of the Code for the Design of Urban Roads and Buildings
7.5 stairs and steps
7.5.1 staircase is an important means of vertical traffic space, the passage of the stairs and the use of not only to consider the needs of healthy people, but also should consider the disabled, the elderly use requirements. The form of the stairs is made by 2 runs or 3 runs of a straight line. Avoid the use of single-run stairs and curved and spiral stairs on each floor. This type of staircase will give people with disabilities, the elderly, women and children fear, prone to fatigue and fall accidents.
The main staircase of the public building is easy to find, the light between the staircase should be bright, the net width of the staircase and the depth of the resting platform should not be less than 1.50m, so as to ensure that the crutches and the disabled are passed.
The front edge of the tread should be designed in a circular arc shape and should not be designed in a rectangular shape to prevent the crutches from falling off and wiping the upper. Tread should be used non-slip material and set in the front edge of non-slip bar, shall not use no kick the hollow step, easy to cause the crutch to slide forward and fall injury.
