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.

Jobs

Wood Top Plates with Tie Rods

Wood Top Plates with Tie Rods

(OP)
I have a condition where a contractor removed wire rope used ina barn to hold/restrain the top plates. The rafter are seated on 2x6 rough cut top plates with only collar ties and spans 32'.
Does anyone have a good solution to stabilze the wall from bowing ( 2" ) with tie rods?
Details would be nice if any. I have some ideas.

RE: Wood Top Plates with Tie Rods

Can you post a section showing the configuration and height of the existing collar ties?

Mike McCann
MMC Engineering

RE: Wood Top Plates with Tie Rods

Guessing without a sketch, but ... well, outside of replacing the wire rope, there are three options I see ...

1. Double up on the rafters which should cut the deflection in half if the collar tie remains in it's current position.

2. Lower the location of the present collar tie.

3. Add a ridge beam.

I suspect that the reason for the lateral kick is that the present collar ties are high, allowing the rafters to bend, and causing the lateral deflection. You have to change this condition to solve your problem.

Mike McCann
MMC Engineering

RE: Wood Top Plates with Tie Rods

Whatever you chose to do, unless the rafters have developed a memory, you will have to de-load the present rafters to have anything you add stress up properly. If the rafters have developed a permanent deflection, you can logically only hope to keep matters from getting worse without replacing them.

Mike McCann
MMC Engineering

RE: Wood Top Plates with Tie Rods

(OP)
Thanks
I will add a detail from Autocad later. The ridge beam is not possible since under side of rafter and collar ties are covered with T&G knotty pine and insulated woth rigid insulation & batt in between. I am going to shimmy up & lay some boards in collar ties so I can walk down the lengthe of the house to inspect ridge connections.
I was thinking to strap under the eaves with C-channels and four tie rods spaced evenly in catherdral space.

Mike D.

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


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