Integral Abutment Pile Design NYSDOT

[A_9_9]

Does anyone knows if NYSDOT allows the integral abutment piles to be designed for only the gravity loads?

 

[bridgebuster]

Sorry, but the answer is no. You have to include lateral loads.

 

[A_9_9]

Thanks! How about bending?

 

[le99]

@K3333 What is the motive to have the integral piles carrying gravity load only?

 

[A_9_9]

@le99 this is from FHWA Comprehensive Design Example

 

[le99]

If you do not need the feature of the integral pile to accommodate the movement of te building due to shrinkage and temperature effect, then why not use the conventional pile?

 

[bridgebuster]

@A_9_9 - if you're working on a NTSDOT project you need to discuss design criteria with GEB since they will prepare the FDR. Chapter 17 of the GDM doesn't address lateral loads for pile designs of IA bridges. However, the Chapter was published in 2010 and is still considered a draft.

If it's not a NYSDOT project maybe you can convince the owner that gravity loads only are sufficient. In my office, we just did an IA bridge in NY - not for NYSDOT - but included lateral loads in the pile design. We just did a bunch of IA bridges for a design-build proposal for NYSDOT and the geotechs included lateral loads.