Pipe supports
Pipe supports
(OP)
Can someone help me figure out what size all thread I can use to support pipes that are producing 1506# shear I want to use a 20' piece and the force would parallel to the length of the rod. Needs to be galvanize or 316 rod. The rod would be attached to a 3"x3"x1/2" angle rod that is attached to the pipe to keep it from sagging. Do I look for tensile strength of the rod? if so I know its like 125,000 Psi but that doesn't seem right because it doesn't change on the size. I am thinking a 3/4" all thread will be good enough.See drawings






RE: Pipe supports
RE: Pipe supports
RE: Pipe supports
Test pressure is 125 psi
F(of Pipe)= A*P=1594.5
since there is 4 pipes assume 5th as 4" even though 2"
F( of pipe)=7972.5
Axial stress=F(of pipe)/A(3/4" tie Rod)=23,587.27 <36,000 ok but not great
so try(1" tie rod)
Axial Stress=12531 <<36 much better
is this procedure seem ok until I get the S.E. to give me stamped calcs. I just want to show the inspector since we are running behind schedule. see photo of 3d model of this
RE: Pipe supports
RE: Pipe supports
From the frame analysis viewpoint (any rod included), you may substitute your pressurized pipes by their weight properly distributed to the support points, and the effects the pressurization passes to the frame. Once that is done analysis proper can be reasonably started, and so the effectivity of any eccentrical rod holding any tension that may appear can be then reasonably ascertained.