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


ACI 318 reinforcing in ICF Wall Forms

ACI 318 reinforcing in ICF Wall Forms

ACI 318 reinforcing in ICF Wall Forms

According to ACI 318 does the verticle rebar need to be tied to the horizontal rebar in a flat wall Insulated Concrete Form?

RE: ACI 318 reinforcing in ICF Wall Forms

I have no idea in ACI but in Spain I think the only tying requirement would be the bars keep the intended form and position throughout the whole concreting operation.

So you may tie all, part, or even weld (prefab rebar grill, never at the works site) within the specific code conditions that apply.

RE: ACI 318 reinforcing in ICF Wall Forms

Most of the ICF forms do not require rebar tying.  Although I cannot speak for all, many of the engineered ICF wallsystems we have done, are designed as a worst case for bar placement.  The horizontal bar is already held in a fixed location, usually through the integral plasit locator clips on the form system.  As for the vertical bars, they are restricted to a maximum lateral movement of 8", due to the structural ties which are formed with the block at 6-8 inches on center.  So if the wall system is speced for 16" centered bar placement, the design is calculated for 24" centered bar placement, which is the absolute worst case.  As for the perpendicular movement, because the horizontal bars are secured in the clips in an alternating pattern, the vertical bars can be "woven" into the horizontal bar to effectively create a basket weave pattern.  ICF forms are great to engineer with, simply because the forms design allows for a much more consistent and ideal design placement on site, of all reinforcing.

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 – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. 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