Structural design of bored pile
Structural design of bored pile
(OP)
Can somebody give me a clue on how to determine the quantity of reinforcement to be put in a bored pile subjected to shear force and large bending moments ?
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Structural design of bored pile
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RE: Structural design of bored pile
RE: Structural design of bored pile
RE: Structural design of bored pile
RE: Structural design of bored pile
I assume by "fully supported" you mean braced by the soil. I wouldn't worry about bracing for a circular pile acting as a beam. As for the reinforcement, I would just provide reinforcement where the pile is bending. Below that, I would treat it like any other bored pile.
RE: Structural design of bored pile
If shear reinforcement is critical make sure that the reinforcement is fully developed by providing an additional loop of the helix.
RE: Structural design of bored pile
You can also have an unreinforced pile/pier:
"An unreinforced pile shall be permitted where the design
action effect does not exceed the design strength calculated for plain concrete members in
accordance with AS 3600"
Thus as long as your pier meets the requriements of your concrete structures code you all good, ie, beam or columnas fully restrainted per Hokie66, unless you have quick sand or an abnormal situtation.
When in doubt, just take the next small step.
RE: Structural design of bored pile
RE: Structural design of bored pile
When in doubt, just take the next small step.
RE: Structural design of bored pile
RE: Structural design of bored pile
It is very hard to get a fixed end connection with timber piles, here you have to assume pin type connection, or have a nice deep pile cap. For concrete piles that are assumed to be pinned at the top, you generally only supply 50mm embedment. Some people provide enough reinforcement to ensure ductility, thus that the connection can go into plastic deformations but be assumed as pinned. Some don't.
When in doubt, just take the next small step.
RE: Structural design of bored pile