replying to etpm , Joe Farmer wrote:
etpm wrote:

On Sat, 22 Mar 2014 17:18:02 +0000, Joe
You say the load is 30 feet long, supported every two feet. So, if the
load is uniform, it will be supported in 15 or 16 places. If we assume
15 places then each arch of the building will need to support 86.67
pounds. My steel arch building, which I think is similar to yours, is
rated for 70 pounds per square foot snow load. However, your building
is twice as wide as mine and two feet taller. What is you building
rated for? Do you get that much snow? Since I never get more than 8
inches of wet snow I would not hesitate to put that type of load on my
building if I needed to.
ERS



Sorry , I didn't give the right amount of load. The load is 600 pounds in
30 feet. The building roof I'm trying to support is made by
AmericanSteelSpan. What I'm supporting is a conveyer for grain , being set
on top of the roof. The roof is designed to support 37# /foot snow load. I
don't want to steal from that in case I have alot of snow sometime. I hope
I'm not confusing things , but what I'm supporting is the CONVEYER on top
of the roof. I mentioned the conveyer weighs 600 # and is 30 feet long. It
is actually 60 feet long and 1200 #, but I was planning on putting up 2 of
the arches of 2"x6"x1/8" wall arches directly underneath the roof.

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