Moment reinforcement for drilled piles
Moment reinforcement for drilled piles
(OP)
I am currently working on a design of a deep foundation. I have found my applied moment through structural analysis and now I am looking for a way to find my required flexural reinforcement of the circular concrete cross section of the pile. I'm not exactly sure how to go about this part of the design. I have searched online and have not found much about it. I would greatly appreciate thoughts and comments about this. Thanks!






RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
RE: Moment reinforcement for drilled piles
Anyway, pile geotech design is mostly done by computer now, so the moment diagram isn't any harder to provde than a max value.
The standard column load interaction diagrams aren't going to be that useful. They'll all just tell you to use minimum steel, generally while showing that you're only using a few percent of the moment capacity. You may have to build your own interaction diagrams or otherwise design the members to avoid having a ridiculous amount of reinforceent.
Also, be aware that there may be separate code requirements for piles. For instance, in the Canadian code you have to ignore the outer inch of concrete for uncased ples and then reduce the capacity of the member by an additional factor of 0.9. There are also requirements for pile reinforcement in seismic areas to ensure ductility.