tree68 BaltACD Why don't truckers use 'trough' style trailers with structural pockets for the coiled steel. Using structural elements of the trailer to hold the load in place in addition to the commonly used tie downs I'm totally guessing here - maybe they don't want to have such specialized equipment? Railroad coil cars are essentially in captive service - take a load from the mill to the user (usually the same one), then head back empty for another load. I see this on the Deshler cam all the time. For the most part, it's how railroads operate. If coils are a regular load for a particular hauler, then a specialized trailer makes sense. Otherwise, they can use that now-empty flatbed for whatever load makes itself available. Maybe Shadow can shed some light on the question.
BaltACD Why don't truckers use 'trough' style trailers with structural pockets for the coiled steel. Using structural elements of the trailer to hold the load in place in addition to the commonly used tie downs
I'm totally guessing here - maybe they don't want to have such specialized equipment?
Railroad coil cars are essentially in captive service - take a load from the mill to the user (usually the same one), then head back empty for another load.
I see this on the Deshler cam all the time. For the most part, it's how railroads operate.
If coils are a regular load for a particular hauler, then a specialized trailer makes sense. Otherwise, they can use that now-empty flatbed for whatever load makes itself available.
Maybe Shadow can shed some light on the question.
Or check out battleship wrecks like the Bismarck, the bottom of Scapa Flow, etc.
Large caliber gun turrets in many of the world's navies weren't actually secured and just depended on the weight of the turret to keep it in place.
oltmanndIt's actually gone the other way. Freight car trucks used to have keepers to keep the wheelsets in the sideframe. Requirment was dropped in the 1970s because the things caused more trouble than they were worth. It was a bit before my time, so I don't have the specifics....
It isn't just railroad cars that use gravity as the primary force to keep things together. Check out bridges the next time you get close - wiht the expansion and contraction of temperature changes it is difficult to 'nail it down'.
When extreme forces get applied, even gravity can be defeated.
Never too old to have a happy childhood!
CandOforprogress2 So you are standing trackside about 150 feet from a railroad car that is rocking back and forth and flips over as the the train is doing 20 mph. Or you are in your car at a grade crossiing and the train derails and starts acrordiinging. you think you are far enough away but out of nowhere a railroad wheel flys at you and crushes you and your car and you are at St Peters gate wondering what just happened. The picture of the 1000lb wheel set indented in the side of the Hopper car gives you a idea of what damage flying debris from derailing railroad cars can do. If highway trucks had the same setup the USDOT would have put a end to it years ago.
So you are standing trackside about 150 feet from a railroad car that is rocking back and forth and flips over as the the train is doing 20 mph. Or you are in your car at a grade crossiing and the train derails and starts acrordiinging. you think you are far enough away but out of nowhere a railroad wheel flys at you and crushes you and your car and you are at St Peters gate wondering what just happened. The picture of the 1000lb wheel set indented in the side of the Hopper car gives you a idea of what damage flying debris from derailing railroad cars can do. If highway trucks had the same setup the USDOT would have put a end to it years ago.
It's actually gone the other way. Freight car trucks used to have keepers to keep the wheelsets in the sideframe. Requirment was dropped in the 1970s because the things caused more trouble than they were worth. It was a bit before my time, so I don't have the specifics....
-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/)
BaltACDWhy don't truckers use 'trough' style trailers with structural pockets for the coiled steel. Using structural elements of the trailer to hold the load in place in addition to the commonly used tie downs
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
tree68 BaltACD Why are truckers using flatbeds to haul steel rolls? Because the railroads don't go there any more?
BaltACD Why are truckers using flatbeds to haul steel rolls?
Because the railroads don't go there any more?
Why don't truckers use 'trough' style trailers with structural pockets for the coiled steel. Using structural elements of the trailer to hold the load in place in addition to the commonly used tie downs
BaltACDWhy are truckers using flatbeds to haul steel rolls?
BaltACDRailroads tended to use Coil Gons - both covered and uncovered for such loading
Shadow the Cats ownerIf you want I can post pictures of what happens when some skateboarder aka Flatbed truckers lost their bets on securement with things like steel coils or just google them. There is a reason why a coil of steel with the eye to the side of the trailer is called suicide style. If that sucker breaks free under braking well they blot the driver up off the coil itself after it goes thru the cab of the truck. This will give you an idea what can happen when 40K plus pounds of steel breaks free and why the regulations for securing it require 3 times the weight of the load in strength at the federal level and most carriers require 5 times. https://www.google.com/search?biw=1920&bih=963&tbm=isch&sa=1&ei=EkBbW4rKKp29jgTq6rTQDA&q=steel+coil+truck+accidents&oq=steel+coil+accidents&gs_l=img.1.1.0j0i8i30k1.57045.58515.0.60814.5.5.0.0.0.0.107.456.4j1.5.0....0...1c.1.64.img..0.5.455...0i7i30k1j0i8i7i30k1.0.-fjnRefJpAg
Why are truckers using flatbeds to haul steel rolls?
Railroads tended to use Coil Gons - both covered and uncovered for such loading
(Shoulda seen what steel coil did to an ATSF long nose SD40-2 at Pittsburg, CA in 1992 ...came out of that with no nose and severed one of the collision posts....the coil then ran out in the swamp.)
Once the railcar/locomotive. derails and rolls, I'd rather have it coming apart like a race car and dissapating the force of the derailment \ The Kingpin and truck bearing plate are pretty beefy critters by design.
A 5G crash impact would be very mild. Considering that vehicle crashes are able to generate impacts of 40G - 60G - 100G. Securing the load at 5 times its weight still seems reckless.
Shadow the Cats ownerIf you want I can post pictures of what happens when some skateboarder aka Flatbed truckers lost their bets on securement with things like steel coils
The years fog the exact memory, but I saw something to that effect on the 401 in Ontario. I think there may have been a rear-end collision involved, but there was no livable space in the COE tractor.
While focusing on the very small possibility that the wheels might flatten you, you seem to have overlooked the fact that the whole darn train that is derailing is also headed your way.
Thanks to Chris / CopCarSS for my avatar.
If you want I can post pictures of what happens when some skateboarder aka Flatbed truckers lost their bets on securement with things like steel coils or just google them. There is a reason why a coil of steel with the eye to the side of the trailer is called suicide style. If that sucker breaks free under braking well they blot the driver up off the coil itself after it goes thru the cab of the truck. This will give you an idea what can happen when 40K plus pounds of steel breaks free and why the regulations for securing it require 3 times the weight of the load in strength at the federal level and most carriers require 5 times. https://www.google.com/search?biw=1920&bih=963&tbm=isch&sa=1&ei=EkBbW4rKKp29jgTq6rTQDA&q=steel+coil+truck+accidents&oq=steel+coil+accidents&gs_l=img.1.1.0j0i8i30k1.57045.58515.0.60814.5.5.0.0.0.0.107.456.4j1.5.0....0...1c.1.64.img..0.5.455...0i7i30k1j0i8i7i30k1.0.-fjnRefJpAg
CandOforProgress2So you are standing trackside about 150 feet from a railroad car that is rocking back and forth and flips over as the the train is doing 20 mph. Or you are in your car at a grade crossiing and the train derails and starts acrordiinging. you think you are far enough away but out of nowhere a railroad wheel flys at you and crushes you and your car and you are at St Peters gate wondering what just happened. The picture of the 1000lb wheel set indented in the side of the Hopper car gives you a idea of what damage flying debris from derailing railroad cars can do. If highway trucks had the same setup the USDOT would have put a end to it years ago.
And then there was the dinosaur munching away on vegatation in what is now South Carolina when WHAM 6 cubic miles of 'space junk' slams into the Earth - poof you and all your kind are dead or dying.
Gravity always wins.
Our community is FREE to join. To participate you must either login or register for an account.