H Pole Foundation (Overturning)
H Pole Foundation (Overturning)
(OP)
Hello there
I need a push in the right direction to allow me to look at the foundation of a power line H pole assembly. The structure is an intermediate structure and as such is mostly subject to a lateral wind load acting on the conductors and poles. I've attached a drawing for reference.
I know that if the structure is cross braced the main loads are uplift on one leg and bearing on the other (similar to a broad based transmission tower with individual footings). However, what's throwing me here is the fact that there is no cross bracing between the poles above ground but yet the poles are connected and braced below ground.
Does this mean that the main foundation loads are still uplift and bearing on the left and right legs respectively (as pictured).
Many thanks for your help.
I need a push in the right direction to allow me to look at the foundation of a power line H pole assembly. The structure is an intermediate structure and as such is mostly subject to a lateral wind load acting on the conductors and poles. I've attached a drawing for reference.
I know that if the structure is cross braced the main loads are uplift on one leg and bearing on the other (similar to a broad based transmission tower with individual footings). However, what's throwing me here is the fact that there is no cross bracing between the poles above ground but yet the poles are connected and braced below ground.
Does this mean that the main foundation loads are still uplift and bearing on the left and right legs respectively (as pictured).
Many thanks for your help.






RE: H Pole Foundation (Overturning)
RE: H Pole Foundation (Overturning)
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: H Pole Foundation (Overturning)
If I'm understanding this correctly, treat each pole as having an independent fixed base foundation and design this to resist one pole's bending moment load? So, basically the above design will have twice the capacity of a single pole.
Apologies if these questions seem a bit basic, I've kinda been thrown in the deep end...
RE: H Pole Foundation (Overturning)
As to loads, you do have the wire loads and the wind on both poles to share between them, in the separate pole case.
Michael.
Timing has a lot to do with the outcome of a rain dance.