×
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!

*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

Masonry Deflection for Long Horizontal Spans

Masonry Deflection for Long Horizontal Spans

Masonry Deflection for Long Horizontal Spans

(OP)
Our office is working on a number of banks that have teller drive-thrus with 2 to 4 feet of masonry veneer.  On some of the jobs, the spans for the supporting beams are 50 feet long.  If we size these beams for L/600, we get a huge member that seems excessive.  Is there a differnet guideline to follow for this situation, or do we need to use the L/600 tolerance?
Replies continue below

Recommended for you

RE: Masonry Deflection for Long Horizontal Spans

You could put vertical soft joints in the brick every so often.  Just make sure you figure out how much these joints will compress at the top, so that you can specify the correct joint width and sealant.

DaveAtkins

RE: Masonry Deflection for Long Horizontal Spans

It seems a little worse than L/600.  ACI 530 states a maximum deflection of 0.3" or L/600, whichever is less.

I heard an ACI speaker once say the 0.3" was added after complaints had been made that on long spans you can see the vertical displacement too much.  Not that it cracks the masonry.

Sounds like you need more supports.

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



News


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