"Joe Farmer" wrote
in message
oups.com...
replying to , Joe Farmer wrote:
dcaster wrote:

I am confused. How many arches are you planning on having? One,
two, or
many?
Two thoughts: One is can you support it by the roof and when it
snows ,
lower it to the ground. The second is that it would take less steel
if you
figured out how to beef up the roof.
Dan


the load actually is 1200# in 60 feet. I was planning on using 2 of
the
arches made of the 2x6 material. I thought if I could out how much
weight
the 2x6 material would support, then I could figure out if two were
enough. I may have to switch material? The conveyer on the roof
cannot be
lowered in the winter. I need it's use year around. The conveyor
will be
bolted to the roof. Again if I could find out how much weight the
tubing
in that arch could support , it could help alot.

You could measure the deflection by hanging pallets of weighed
sandbags from the arches, but that won't tell you the margin to
failure from snow and wind loads.

Ask Joe Trussmaker to evaluate your problem.
http://www.midwestmanufacturing.com/...oductTypeId=17