×
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

Post Tensioned beam & bonded steel

Post Tensioned beam & bonded steel

Post Tensioned beam & bonded steel

(OP)
Is the bottom bar of the bonded beam steel of post-tensioned beams required to be hooked at column end support?  In most PTI details I've seen, they show bottom & top bars to be hooked but I would like to eliminate some congestion.

RE: Post Tensioned beam & bonded steel

I'm not certain here...so do some research, but I think the bottom steel needs to be detailed in accorcance with the Structural Integrity sections of Chapter 7 of the ACI 318 code.  Also, if you use your beams in a lateral resisting frame, you may have conditions with bottom steel in tension at the supports, where you'd need to develop them properly - just like negative top steel would need to be.

RE: Post Tensioned beam & bonded steel

According to the PCI handbook, there are some alternatives for anchorage at the support. Such as positively attaching(welding) bars to anchorage plates or transverse anchorage bars.  The other alternatives shown do not seem to alleviate congestion.  The purpose of these details is for end bearing.  They outline some potential failure planes that certain amounts of steel should cross.  I'm citing a fifth edition PCI.  Top steel I'm not sure about, and PCI does not address.

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