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what is the allowable deflection for shoring piles?

what is the allowable deflection for shoring piles?

what is the allowable deflection for shoring piles?

(OP)
Hi,

I was always wondering if there is any code recomended allowable deflection for the shoring piles (mostly residential buildings).

I do have the "shoring and trenching manual" of Caltrans which recomends %0.2 of wall height. But this seems to be a very stringent requirement.

Does anybody have any other reference material with this regard?

Thank you

RE: what is the allowable deflection for shoring piles?

vanik,

The limit depends on

1) The strength and stiffness of your shoring system

2) What the person working in the pit will tolerate

Obviously, the more deflection, the closer you are getting to the limit state of your system.

Jeff

RE: what is the allowable deflection for shoring piles?

All though there is no hard and fast rule on this, I try to keep deflections under 1". If you have too much deflection, you start to get secondary effects that are not really accounted for in the design. This agan is not any code, but my own personal preference. note that deflection calculations for sheeting are more of an estimate than a precise calculation.

RE: what is the allowable deflection for shoring piles?

Dear Friend
Maybe there is some codes for shoring deflections, but it is better to make a caculated negative deflection for shoring in such away that you don't have any downward deflection after deassembling og of shorings.
This should be done specialy for larg spans.

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