×
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

Pad Footing Poured Off Center of point load

Pad Footing Poured Off Center of point load

Pad Footing Poured Off Center of point load

(OP)
A pad footing on one of my projects was poured off center from the point load it was design to take (see attached picture). My first thought is to check the actual bearing capacity of the soil to see if it is higher than the assumed 2000 psf. If this doesn't help, what would be the best solution to support this load? Extend the footing to the right side(in the picture) by doweling into the existing pad?

RE: Pad Footing Poured Off Center of point load

I'd talk to the structural engineer and find out how much of the design load is transient and live. Sometimes, we get the whole brunt of the loading to include all of the wind and snow loads. These can challenge bearing capacity, but not likely to lead to long-term settlements.

I'd also review the background geotechnical data (and/or call the geotechnical consultant) to evaluate the as-built footing's capacity to support this eccentric load. Whether it challenges the ultimate bearing pressure or not, there could be performance issues - i.e., settlement that need to be considered.

The best way to solve the problem? No clue. I don't know the geotechnical conditions at the site.

f-d

ípapß gordo ainÆt no madre flaca!

RE: Pad Footing Poured Off Center of point load

Unless you have rotation or an overturning moment on the footing, I doubt that's an issue. Check the footing as if the extra area on the left didn't exist and check the bearing pressure. Probably ok.

Did you check shear in the footing along the wall? Also not likely an issue, just check...particularly if the point load is high.

RE: Pad Footing Poured Off Center of point load

I would talk with the structural and geotechnical engineers. The footing appears to be about 5' and based on your assumed allowable bearing capacity of 2000 psf, it is lightly loaded. Perhaps they can allow for some "additional" capacity, lowering the FOS so the eccentric load can work for the current footing.

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


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