Pier Foundation

[pgaviria]

What is the minimum shear reinforcing for pier foundations?

 

[jdmm]

how long is a piece of rope

 

[Focht3]

But SERIOUSLY, what are you trying to do?



Please see FAQ731-376 by [blue]VPL[/blue] for tips on how to make the best use of Eng-Tips Fora.

 

[Qshake]

jpmm - a piece of rope is always twice half its length. I'm surprised at you!

pgaviria - what kind of pier are we talking about: building, highway or marine application? The minimum shear reinforcing requirements are different depending on the applicable code and of course the location of said pier in regards to seismic zones. Be more descriptive.

 

[pgaviria]

ACI 318-89 11.5.5.1 requires a minimum shear reinforcement when Vu exceeds one half the shear strength provided by the concrete Phi*Vc.Do this apply to Drilled pier foundations? How deep in the pier should this ties go?

 

[jdmm]

Qshake,

This forum is particularly informative because I have never had an answer to that question.

 

[VoyageofDiscovery]

Hi pgaviria,

Now I see, are you sure you have low shear in you drilled pier? Have you modelled it with correct soil parameters?

Typically I have to run my spiral all the way to the rock socket.

Regards

VOD