Piles on Steel Pipe
Piles on Steel Pipe
(OP)
I have a horizontal steel pipe burried underneath a box culvert with two wood piles resting between the box culvert and the 60" dia. steel pipe. I have computed the loads and determined that each pile applies 10.6 kips on the pipe. The two piles are spaced 14 ft c/c and I am assuming that the piles rest directly on the top of the pipe. How can I determine the required thickness of the pipe? I attempted to check with flexure, but the resulting thickness was too small and did not make sense.






RE: Piles on Steel Pipe
BA
RE: Piles on Steel Pipe
I see several factors involved: bending in the pipe, soil bearing on the pipe, affect of fill material between the pipe and the culvert, affect of water, lateral load on the piles, uplift on the culvert.
One important question is: are the piles bearing at the end of the pipe? Or is there a length pipe beyond the piles. This changes your shear and momemt diagram,which will determine your size.
Am I on target? It is hard to visualize with-out a sketch.
There are days when I wake up feeling like the dumbest man on the planet, then there are days when I confirm it.
RE: Piles on Steel Pipe
From surface to bottom of pipe is 20 feet, top 4 is OH @ 110 PCF , bottom 16 is SW/ML/PT @ 115 PCF. I assumed culvert was filled with water.
RE: Piles on Steel Pipe
There are days when I wake up feeling like the dumbest man on the planet, then there are days when I confirm it.
RE: Piles on Steel Pipe
RE: Piles on Steel Pipe
Could you provide four piles, two each side of the pipe so that the loads are supported by the soil without stressing the pipe?
BA
RE: Piles on Steel Pipe
The two wooden piles are 8 feet long into the sketchy that I drew. Its what the client wants to go with.
RE: Piles on Steel Pipe
Good luck...you'll need it.
BA
RE: Piles on Steel Pipe
There are days when I wake up feeling like the dumbest man on the planet, then there are days when I confirm it.
RE: Piles on Steel Pipe
BA