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Transfer of Bending Moment from Embedded UC Section into Pile.

Transfer of Bending Moment from Embedded UC Section into Pile.

Transfer of Bending Moment from Embedded UC Section into Pile.

Hi all,

I am designing a single pile which will act to restrain a universal column acting as a prop to a retaining wall. The UC will be embedded 2m into the pile. I have calculated the resultant forces at the base of the UC (My, V, and N) and designed the pile length and reinforcement accordingly.

Unfortunately the moment at the base of the UC is very high, when applied additionally to the moment induced in the pile by the shear force this results in a very high design moment and reluctantly the reinforcement is going to be very expensive.

Bending Profile: https://res.cloudinary.com/engineering-com/image/u...

To get around this my colleague has suggested I apply a rotational restraint at the head of the pile, replicating the additional stiffness of the UC and bring down the moments a lot. However I have only done this where a pile cap or slab is present to restrain and it doesn't seem realistic to me.

Does anyone have experience with this?


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