![]() ![]() It consists of a series of zigzag turns or switchbacks that create a staircase-like structure, allowing the ramp to go up a steep incline while occupying a smaller area. The inner handrail of a switchback ramp must remain continuous. Switchback ramps are accessible ramps designed with a 180° change of direction along the accessible route. ![]() Vertical guardrails must double as both an assistive handrail and a guardrail that prevents users from accessing the edge. Vertical ramp guardrails are common safety systems used for accessible ramps that combine required handrails with a guardrail made up of a series of vertical balustrades. In situations where a handrail is not continuous, handrails must extend at least another 12” (30.5 cm) parallel to the flat surface of the ramp landing. The top grippable surface of any ramp handrail must be set at a height between 34”-38” (86.4-96.5 cm) above the ramp surface and a minimum clear width of 36” (91.4 cm) must be provided between handrails. Handrails along both sides of a ramp are required on any ramp system with a rise greater than 6” (15.2 cm) or a horizontal run greater than 72” (182.9 cm). Dimensions will vary based on the desired slope and height needed. The Ramp (Handrails - Vertical) has an overall combined height of 4.5’ (137 cm), total length of 18.5’ (5.64 m), and width of 45” (114.3 cm). The ends of any handrail should be rounded or returned smoothly to the floor, wall, or post. Inner handrails on a switchback or turned ramp must always be continuous. For edge protection, vertical guardrails are made up of a balustrades that must be spaced to continuously prevent the passage of a 4” (10.2 cm) diameter sphere. Vertical guardrails must double as both an assistive handrail and a guardrail that prevents users from accessing the edge of the ramp. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |