×
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 placement for elevated slab

Concrete placement for elevated slab

Concrete placement for elevated slab

(OP)
Contractor would like to place concrete for a 5" elevated slab on composite decking. The base plates for the steel columns supporting the slab have been grouted underneath however the 12" depth blockout around the columns have not been poured with concrete. All the anchor bolts for the columns are in a 2' footing and have been tested and approved. Bracing for the exterior tilt walls is still in place. Is there anything that would prevent the contractor from placing concrete on the elevated slab?

I am use to having the blockouts infilled prior to placing concrete on an elevated slab however the contractor stated with the bracing in place he does not have to place concrete around the columns base prior to placing concrete on the elevated slab. Any thoughts?

RE: Concrete placement for elevated slab

Based on the information provided I agree with the contractor. The "blockouts" serve no real structural function in any case. But this question and ones like it are best directed towards the design engineer of record.

RE: Concrete placement for elevated slab

The blockouts don't really do a lot for you structurally. The reason for the column blockout is to detach the slab-on-grade from the column structure to avoid settlement of the column footings to cause the slab-on-grade to settle. I've had projects where pouring the blockouts was one of the last structural tasks they did on the whole job. I think the contractor doesn't want to pour them until he's sure the vertical members are plumb.

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