×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Pipeline Support Piles

Pipeline Support Piles

Pipeline Support Piles

(OP)
Hi There,

In the Petroleum industry in California there is lots of debate regarding pipe supports. Obviously there is lots of opportunity for optimization on a long pipeline with many supports. We typically use a 'T' type support made of cut and welded ERW pipe. We typically have thermal stress on the line that we design for using guides, anchors and expansion loops. However, there are still typically many supports along the line that are only necessary for vertical support. The supports use cast in place concrete piles for foundations. Right now there is a school of thought that all of the supports should have rebar cages in the foundations. I used to be of this school of thought because of temperature shrinkage control comments in the ACI 318. However I just came across a portion of the Plain Concrete section of the ACI that states that cast in place concrete piles are not really covered in the ACI. Additionally, read an old post by GeoPaveTraffic that mentioned rebar cages aren't really necessary for supports only under compression. Regardless, for a support like this, with little (friction) to no lateral forces, I'm not really seeing the need for the rebar cages. Has anyone run into this debate in the past? Are there any codes or standards one would point to? Also if the friction is an issue, couldn't something be places between the pipe and support to limit the lateral friction?

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!


Resources