Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Lateral pile load test - Deflection criteria

Lateral pile load test - Deflection criteria

Lateral pile load test - Deflection criteria


What is the maximum deflection criteria can be allowed as per standard for marine pile lateral load test??

Please share the reference.

Vinothkumar S
Geotechnical Engineer

RE: Lateral pile load test - Deflection criteria

SoilRocks (Geotechnical)12 Dec 10 14:07

I don't usually see a structural engineer use a percentage of the pile diameter. Almost 100% of the time, I see them pick an allowable deflection, and apply a factor of safety to the ultimate lateral load that will produce that deflection. The deflections I see structural engineers use most range from 1/4 to 3/4 inch of deflection. I provide the lateral load at the top of pile that will produce that deflection, and they apply a factor of safety to that load - usually 1.5 for transient loads is my understanding.

Anybody know the above criteria reference???

Vinothkumar S
Geotechnical Engineer

RE: Lateral pile load test - Deflection criteria

Allowable deflections should be determined by the structural engineer based on what the structure can handle, period.

Mike Lambert

RE: Lateral pile load test - Deflection criteria

If it is so? What is the useful of performing the lateral load test. because i am going to perform the test for container terminal berth.

IRC limitation is 1% of the pile diameter.

Indian standard 2911 - 50% of the final load at which the total displacement increases to 12mm, final load at which the total displacement corresponds to 5mm.

Vinothkumar S
Geotechnical Engineer

RE: Lateral pile load test - Deflection criteria

The point of a lateral load test would be either to check if your assumptions are correct or to test a sacrificial pile to come up with the design parameters for production piles. Some piles for marine environments are allowed to deflect significantly without damage to the structure while others aren't can't. It's up to the structural engineer to determine the allowable deflection.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


White Paper - Top Enhancements Creo 7.0
Creo 7.0 has breakthrough innovations in the areas of generative design, real-time simulation, multibody design, additive manufacturing, and more! With Creo 7.0, you will be able to design the most innovative products faster than ever before, keeping you on the cutting edge of product design and ahead of your competition. Download Now
White Paper - Reshoring Prototyping and Production
In this whitepaper, we'll provide insight into why and when it makes sense for U.S. manufacturers to reshore prototyping and production, and how companies can leverage the benefits of working with local design, prototype, and manufacturing partners during the pandemic and beyond. Download Now
Engineering Report - Top 10 Defect Types in Production
This 22-page report from Instrumental identifies the most common production defect types discovered in 2020, showcases trends from 2019 to 2020, and provides insights on how to prevent potential downtime in 2021. Unlike other methods, Instrumental drives correlations between a variety of data sources to help engineers find and fix root causes. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close