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Wheel Chair Ramp-A contractor is building a ramp for wheelchair accessibility?
(See figure) for a company. Use your knowledge of the laws triangle trigonometry, help him to guess how a ramp whose dimensions will require the specification is to enable justice to be wheelchair accessible. Talk about the procedure must be followed by the contractor to find the dimensions of the three sides and the measurements of the three angles. Let us give the impact of the Americans with Disabilities Act (ADA) in your discussion and an example.
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#2 written by R_Crumb_Rocks 2 years ago
Basic issue is the maximum safe ramp angle. If you know the height difference then you can find the length of ramp by the following relationship:
ramp length = (height change) / sin (ramp angle)
suppose the height difference is 4 ft, and safe maximum ramp angle is 10 degree (I don’t know this angle is correct, you need to look this up at ADA website). Then the length of ramp is:
ramp length = 4 / sin 10 = 23 ft.
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Since you didn’t include a link to the specs or the figure, the rules say 1″ inch of rise per foot of length and there has to be a level platform if the length is longer than a certain distance even straight, I think 12′, so usually the platforms are put at turning points.