Automotive

Published on April 3rd, 2019 | by Daniel Sherman Fernandez

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Parking Ramp Slices McLarens Nose

Building architects should know how to calculate slopes and gradients in differing situations when designing a car park (multi-storey or just two levels). Slopes can be measured in angles, percentages and ratios to avoid a very expensive damage like this one.

The problem is, some inexperienced architectscalculate the angle of the ramps based on the boring mundane cars that theydrive without considering supercars and also lowered sports cars or low ridersthat some people love and own.

This picture shows clearly how an architectfailed with their calculations or maybe the building owner did not care abouthis car park users and instructed the architect to save space by raising thegradient of the ramp to provide more inner space against providing a betterramp angle to allow for sports car drivers and lowered car owners to drive inand out without damaging their prized rides.   

A parking ramp slope of 5% or less ispreferred, although parking ramp slopes up to 7% are tolerated by the public invery dense urban areas. Parking ramp slopes should not exceed a 6.67% slope,which is the maximum parking slope permitted in the International Building Code(IBC).

Non-parking ramps are often employed atairports, casinos, large retail structures, for special event structures, andon small and irregularly shaped sites. Non-parking ramps

consist of circular helixes (most common),express ramps (external), and speed ramps (internal).

Non-parking ramp slopes should have a maximumslope in the 12% to 14% range. Non-parking ramp slopes up to 20% are sometimesconsidered if covered.

Parking structures with non-parking rampstend to be less efficient in terms of square feet of structure per parkingspace which directly increases the construction cost per parking space.

A grade difference of 8% or more requirestransition slopes so vehicles do not “bottom out”. Recommended are minimum10’-0” transition slopes at the top and bottom of the ramp that are one-half ofthe differential slope. For instance, two 10’-0” transition ramps sloped at6.25% would be required at the bottom and the top of a ramp sloped at 12.5%.

Well, this McLaren owner will have toconvince his insurance company to pay for this expensive damage as the carpark/building owner will not be liable for this damage at all.


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