H-20 Loading, Pressure
H-20 Loading, Pressure
(OP)
I need to design a buried pipe for an H-20 loading. What area due I apply the load over at the surface of the ground? Should I only use the 32 kip load?
Thanks!
Thanks!
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RE: H-20 Loading, Pressure
As an example of the complexity, you'll need to know if the contructor is using trench or embankment installation to design the pipe. And that's just the start.
RE: H-20 Loading, Pressure
Here is the link
http://www.concrete-pipe.org/pdfs1/DD_1.pdf
www.SlideRuleEra.net
RE: H-20 Loading, Pressure
RE: H-20 Loading, Pressure
RE: H-20 Loading, Pressure
BigH - I'll tell you my secrets. I don't have the links at my fingertips, it's the other way around. Have a hard drive full of cataloged downloads on subjects that I know something about. When a good question comes along, I see what I have on that subject. With the title and source (from the American Concrete Pipe Association, in this case) it is relatively easy to Google and find the link.
Alternate methods include making analogies to similar problems in other fields, and just plain old looking for the answer - I always try to do that, offering an "opinion" only as a last resort.
www.SlideRuleEra.net
RE: H-20 Loading, Pressure
Do you know a reference for steel pipe and H-20 Loading?
RE: H-20 Loading, Pressure
National Corrugated Steel Pipe Association, see this document http://www.ncspa.org/images/DDS18.pdf
Also may be additional info in some of their other pubs.
Also see the table on page 253 of the (Canadian) Corrugated Steel Pipe Institute's "Handbook of Steel Drainage & Highway Construction Products"
http
If cast iron is close enough to steel, see
Cast Iron Soil Pipe Institute "Pipe & Fittings Handbook", Chapter VII
http://www.cispi.org/handbook.htm
or perhaps the Ductile Iron Pipe Research Association "Truck Loads On Pipes Buried At Shallow Depths"
http://www.dipra.org/pdf/truckLoads.pdf
www.SlideRuleEra.net
RE: H-20 Loading, Pressure
RE: H-20 Loading, Pressure
This will tell you minimum/maximum cover for H20 & H25 loading for common diameters of corrugated steel pipes. It will also go through the structural design of these buried structures.
For instance... a 16 gage, 60" diameter, 5x1 culvert pipe can carry an H20 or H25 load if properly backfilled with a minimum of 12" cover from top of pipe to bottom of flexible pavement or top of pipe to top of rigid pavement. The maximum cover is 50 feet!
Hope this helps
RE: H-20 Loading, Pressure
Richard A. Cornelius, P.E.
WWW.amlinereast.com