Subject: Re: HUGE SPANS

From: [email-masked] (System Administrator)
Date: 22 Mar 1995 19:14:23 GMT

80 feet isn't particularly difficult.  Go look at a selection of modern
churches or warehouses.  A common warehouse truss for this has wood top
and bottom, and steel rods zig-zagging up and down.  Typically about 2'
from top to bottom.  Go ask any truss company.

I suspect that this is right at the outter limit for conventional 2x4/6
trusses.   

--
=> Sherwood Botsford                   [email-masked] <= 
=> Physics Dept, U of A             SysAdmin, Space Physics Group <=         
=> Edmonton, Alberta, T6G 2J1     403 492-3713  fax: 403 492-0714 <=
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