×
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

Concrete anchorage under wall element

Concrete anchorage under wall element

Concrete anchorage under wall element

(OP)
I have had some conversations about a concrete anchorage breakout with another engineer. The issue is (for example) you have anchorage into large footing or other large concrete mass and you have a solid concrete wall that sits on the projected failure area, how does it affect your breakout calculation. I am more inclined to ignore it myself but this has come up between us more than just a few times. I would love to hear some thoughts/references on the matter. Thank you.

RE: Concrete anchorage under wall element

I think about this often. Undoubtedly, the effect is beneficial. I expect that a concrete strut would form between the anchor and the source of external compression (wall). If you had the necessary tie elements to form a strut and tie mechanism, you could probably forgo breakout altogether. Otherwise, I'm not sure how one would set about quantifying the improvement.

The common situation that gets me wondering is base plates with moment and deeply embedded anchors. I suspect that a concrete strut connects the anchor head and the compression block under the baseplate such that tension breakout isn't nearly as bad as it would at first seem.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

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