Military load
Military load
(OP)
Does anyone know what military load to be used for highway project? Any info as to where i can get that info will be greatly appreciated.
Thanks.
Thanks.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Military load
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RE: Military load
See AASHTO Standard Specs 3.7.4
RE: Military load
https://transportation.erdc.usace.army.mil/tsmcx/
RE: Military load
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Military load
RE: Military load
Analyzed a missile haul road a few years ago. Those missiles are heavy suckers, but the carriers have a bunch of axles and a bezillion tires on them! Lots of overlapping stresses.
RE: Military load
Are you designing for the military load per AASHTO or are you envisioning hauling a tank or some other military vehicle over your bridge?
AASHTO Standard Specs 3.7.4 describes the military loading. In LRFD it's not called military loading - it's called Design Tandem, which is two 25kip axles spaced 4-feet apart Plus Lane Load.
If you're hauling a military vehicle that would be a permit vehicle. Your state DOT would have to give you some information then.
RE: Military load
RE: Military load
The only other limitation here besides the load would be the clearances needed too.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Military load
The only thing is that you would need a minimum of 7 axles to transport the load under the tank, which is exactly why a draggin waggin has so many axles. That loading would be substantially different than the "Alternative Loading".
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Military load
RE: Military load
Fortunately, a few trips of something very heavy will not usually hurt a pavement. After all, you could land a 767 on an interstate highway...you just can't do it a hundred times a day for 20 years!
RE: Military load
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask