Does any one use the Atlas double track bridge as as a deck type truss bridge (or upside down bridge).
I designed an area across the one window in my attic to accommodate the Atlas double track Pratt Truss bridge so it could be easily removed when I needed to access the window. Unfortunately, it blocked most the air coming from the window AC unit I had to use for cooling. I have been trying to figure out how to use the Atlas bridge I had. Have been trying to figure out how to cut the height of the sides down by 1/2 and turning it into a "Pony" type truss bridge vs the through type as designed by Atlas (this would allow their from the AC vent to go about the bridge structure). When I went to the internet to find the name of what I wanted to create. I found pictures of railroad bridges that look just like the Atlas bridge only turned upside down and it was named a deck type truss bridge.
After reviewing the way the Atlas bridge is constructed, I seem to be having problems figuring out how to use their bridge upside down with the tracks on the top.
If any one has done this or tried to do it, I would love to hear your thoughts.
Thanks for any input,
Don
