Torsion transfer to pile
Torsion transfer to pile
(OP)
I have a pile cap with two piles.The Fz in the pedestal causes torsion in the pile cap. If the concrete in pile cap has enough capacity to take torsion, torsion reinforcement is not required. But the torsion in the pile cap should be transferred to the pile.
Can anybody explain me weather i am right or wrong. Kindly explain me in detail the force transfer from pile cap to pile for force Fz.
Link
Can anybody explain me weather i am right or wrong. Kindly explain me in detail the force transfer from pile cap to pile for force Fz.
Link






RE: Torsion transfer to pile
RE: Torsion transfer to pile
RE: Torsion transfer to pile
Convert the torsion (Mtorque) into horizontal force, then apply to the pile. If you already have a Hforce acting on the pile, add this up to that.
Cheers
RE: Torsion transfer to pile
RE: Torsion transfer to pile
RE: Torsion transfer to pile
1) V = Fz / 2
2) M = Fz x y / 2
From there, each pile will need to transfer force in a manner very similar to what we've discussed in past threads where we were talking about single pile systems.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Torsion transfer to pile
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Torsion transfer to pile
If the torsion in thel pile exceeds the concrete torsion capacity, then reabrs are provided to carry torsion.hence the torsion from steel has to be transfered to the pile rebar.for this The width of the pile cap has to be reduced.kindly clarify me weather my statementl is right.
RE: Torsion transfer to pile
This is the part that requires care. At the proportions you've drawn your system, sectional method torsion checks, as you might use for a regular beam, don't really apply. Strut and tie is more suitable.
Regardless of how you choose to check cap torsion, you're going to have three column/beam style connections in close proximity to one another. Expect plenty of rebar.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Torsion transfer to pile
RE: Torsion transfer to pile
I'm afraid that I'm not aware of any worked examples although I'm sure there are some out there. Maybe try TXDOT research reports on STM methods.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Torsion transfer to pile