| |
|
|
bridge for Island
OOOPS, sorry, bouyancy of 55 gallon barrel - 420lbs. Was thinking of something else. In any case, they make good pontoons and are cheap.
|
|
 Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
Chief thats a good strong bridge when built with a tractor trailers frame that's the way we've been using them to put across streams for snowmobile trails. We've even butt welded two for wider streams and cross them with 10.000lbs machines. We set them with excavators on the wheel ends and just extend the front by chains to cross. It might be a frame would also work. Still not as nice looking as just the arches from a roof of a warehouse.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
Easier to find would be chicken house trusses. I purchased 5 for $1000. They span 45 feet. The top purloins would look like a trellis. You would need vertical structures from the truss to deck, rope, chains, metal or wood. I would think you could build it for a few thousand. You would need a light crane to set them. I rented one for $150 here.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
We picked up some from a 60 foot wide building that had an arch built into them of about ten foot on that length. We cut in half to make transporting easier as well as we at the time had no need for them at that length, they were 2by four laminated together five high or deep. They are not the best for NY winter weather but we've had some in about ten years now and still crossing with the 10,000lb groomers. We set them up at about 16" spacing and the bridges are 12 foot wide. The arch for on streams with spring conditions makes it nicer then the flat bridges that catch tree's and limbs and then back up. We were given these trusses as nobody else seemed to want them. We've had oppertunities to pick up more but the open wood is not going to last as long as metal and we are looking at 17,000lb groomers for the new ones and we feel we need more capacity.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
Ok I'm Back. Boy we are making head way now, the flat bed trailer hit the spot. Down here there is a 14' wide burned out mobile home on almost every corner. I can cut the frame to what ever size needed. Any ideas on decking and how to attach.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
They aren't very strong to begin with and the metal is light and tough to work with. I'd put what ever configuration together that works off the main rails and test it with the load on it before making the span. If you could have it raised you could cable it underneath for additional capacity.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
hey SG my picture was an old semi trailer not a mobile home frame the semi trailer is built to be load bearing I don't know about mobile home frames
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
CB
You are 100% correct the flatbed trailers are rated in tons and would be far superior to the mobile home system. The Mobile home frame would be eaiser for me to cut and weld if I could get a load rating that would be up to the task. The only thing that I should be driving to the Island is my snapper (lawn mower that is). I have seen the size of some of the individuls that live in these mobile units and the frames may carry more of a load rating than we may be aware of.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
The home frame I believe would do fine for that load and all the outer rails would be able to be removed. Remember that the homes frame are supported thru out the length.
|
|
Add Photo
Bookmarks: |
|
|
|
|
bridge for Island
We routinely have to build crossings for creeks, etc., and have found the two cheapest, easiest ways.
First, the down & dirty, get a flat highway semi-trailer, remove the running gear and drag it over the gap.
Secondly, and IMHO more time consuming, but more "user friendly" is to get two or three OWSJ's (Open Web Steel Joist) made the right length to span the gap. Join them as a single unit by welding or bolting cross-ties in place, then deck with your favourite flavour of decking material. If you have access to them, surplus sign boards work well. They are usually 3/4" outdoor grade plywood and have been well painted. Light steel decking, or even expanded mesh also work well.
Best of luck.
|
|
Add Photo
Bookmarks: |
|
|
|
Gas Generator Weather Protecti
01-21-2006, 08:34 
Pics
Reply
Digg It 
Del.icio.us 
