BHD
Veteran Member
the depth of the beam is the major key to strength,
most likely you can make a small and light weight addition on your current ramps that will nearly eliminate the problems, if the ram is not bent.
if you can straighten it out, use a 1/2 to 5/8" rod and put a few spacers, for a web, (flat, rod, small angle, etc.), and make a rod that will truss the under of the ramp most like a nice bow will be fine, I would say about 6" in the center, and then use the short pieces to fill in for a web, in the truss,
the pictures are not ideal but represents what I am trying to say,
years ago I made a moving ramp, abut 3 foot wide and 20 foot long, use some rebar for truss and it was made out of one inch square tubes and the 1/2 rebar truss I had two points in it to widen the truss, now I know it would not have most likely supported a 3000 pound machine, but it was not designed to, but the truss can strengthen them greatly and not add a lot of weight,
if all else a flat iron 1/8 on the bottom edge of the angle and increase it depth to 6" and trim the ends so it can work same as the angle to the earth would be (just a solid web),
most likely you can make a small and light weight addition on your current ramps that will nearly eliminate the problems, if the ram is not bent.
if you can straighten it out, use a 1/2 to 5/8" rod and put a few spacers, for a web, (flat, rod, small angle, etc.), and make a rod that will truss the under of the ramp most like a nice bow will be fine, I would say about 6" in the center, and then use the short pieces to fill in for a web, in the truss,
the pictures are not ideal but represents what I am trying to say,
years ago I made a moving ramp, abut 3 foot wide and 20 foot long, use some rebar for truss and it was made out of one inch square tubes and the 1/2 rebar truss I had two points in it to widen the truss, now I know it would not have most likely supported a 3000 pound machine, but it was not designed to, but the truss can strengthen them greatly and not add a lot of weight,
if all else a flat iron 1/8 on the bottom edge of the angle and increase it depth to 6" and trim the ends so it can work same as the angle to the earth would be (just a solid web),