×
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

ACI 10.8

ACI 10.8

ACI 10.8

(OP)
In my old ACI 318-89 section 10.8.4 it states that a compression member with a larger cross section than required, a reduced effective Ag may be reduced to 1/2 to determine minimum reinforcing.  Won't this be the case in every axially loaded column?  I guess I don't know if I totally have understood this section??

RE: ACI 10.8

Joemarch,

I believe the intent of this section is to allow you to use 0.5% minimum column reinforcing rather than the typical 1% minimum reinforcing when you have a column size that is dictated by other factors (architecture, matching beam widths framing in, etc) than load.  Typically, efficiently sized columns for the loads on them would not meet this section and would require a minimum of 1% reinforcing.  If, however, a larger column is required than truly necessary  0.5% minimum reinforcing may be used provided that the column strength is still adequate for the actual loads using a reduced cross sectional area of the column.  

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