Contact US

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

Hot Rolled Shear UC in RISA-3D v.10

Hot Rolled Shear UC in RISA-3D v.10

Hot Rolled Shear UC in RISA-3D v.10

I am having trouble with the shear check results being given by RISA-3D. I have a W8x35 that has a max Vy of 10.229 k and a max Vz of 9.068 k. The program lists the capacities as phi*Vny = 75.516 k and phi*Vnz = 214.375 k, respecively. However, it shows the max shear check as 0.931 (y), even though my forces appear to be nowhere near there. Furthermore, when I looked through the user reference, I found that it states the shear UC check is "based on the shear provisions of chapter F." In AISC 360, the shear provisions are contained in chapter G. The model uses AISC 14th (360-10) LRFD. Should I ignore the RISA shear check?

RE: Hot Rolled Shear UC in RISA-3D v.10

I wouldn't worry too much about that code reference shown in the manual. It's probably just left over from the previous version. We'll have to track that down and update per the new 14th edition.

Since you didn't post your model, I cannot say this with certainty. But, most of the time these shear check questions are related to the shear caused by torsion. Take a look at the Member torsion spreadsheet. You'll see some torsional shear stresses develop in the member due to this torque. RISA converts this into an equivalent flexural shear force and includes it in the shear code check.

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


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