Pile Cap Design with Asymmetrical Piles
Pile Cap Design with Asymmetrical Piles
(OP)
Greetings to all the members,
This one is regarding the design of pile cap. As per attached PDF, we design the pile cap (for 3 piles) in a way the pile spacing is equal centre-to-center. However, due to the ground condition, one of the 3 piles cannot be piled at the proposed position, thus they piled it a bit away (~300mm away in x-dir from the original position).
Could anyone guide me on how to re-design the pile cap? Would it be better to use square pile cap instead now? What about the reinforcements? And how could I make sure the loading on the pile would now exceed their capacity?
Appreciate your help. Thanks.
This one is regarding the design of pile cap. As per attached PDF, we design the pile cap (for 3 piles) in a way the pile spacing is equal centre-to-center. However, due to the ground condition, one of the 3 piles cannot be piled at the proposed position, thus they piled it a bit away (~300mm away in x-dir from the original position).
Could anyone guide me on how to re-design the pile cap? Would it be better to use square pile cap instead now? What about the reinforcements? And how could I make sure the loading on the pile would now exceed their capacity?
Appreciate your help. Thanks.
#LoveWins






RE: Pile Cap Design with Asymmetrical Piles
Dave
Thaidavid
RE: Pile Cap Design with Asymmetrical Piles
Assuming no moment between column and pile cap, the load on C may be obtained from statics; it is P.e/d where P is the column load, e is the eccentricity of column from line AB and d is the shortest distance between C and line AB. The weight of pile cap must be added as well. If the load to pile C exceeds the allowable, add a fourth pile positioned to reduce the load on B and C.
BA
RE: Pile Cap Design with Asymmetrical Piles
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: Pile Cap Design with Asymmetrical Piles
#LoveWins
RE: Pile Cap Design with Asymmetrical Piles
@thaidavid40: If not adding new pile, then the point would only have 2 piles in which the post required 3 piles. How do we do that without adding additional pile?
@KootK: Yeah, the pile spacing is roughly 3D..
#LoveWins
RE: Pile Cap Design with Asymmetrical Piles
RE: Pile Cap Design with Asymmetrical Piles
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.