I am trying to design a box culvert cover to be traffic rated and heelproof. For the heelproof, I have found that a gap of 1/4" or less will meet the local standards. The "traffic rated" part has me concerned. I have looked at many manufacturers of grating and all will supply me a grate that is H-20 rated. When I ask (out of my own curiosity) what the actual loading is for H-20 in psi or load over area, they all say that it is based on a 32k axle. This does not tell me what the actual loading is. Is there a call out for the loading of one tire? What is the size of that tire in contact with the grate? I have searched the internet and have found nothing stating the tire size and tire load.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
The automotive parts aftermarket is a 2 trillion-dollar business. Major OEMâ€™s like General Motors are eager to win a substantial portion of that market in one of the most difficult supply chain systems in the world. Download Now
Designers in every industry are being pushed to produce larger and more complex product assembles. Add to that the demands that new software features place on your hardware, and you can be in for some serious performance issues. Download Now