×
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

Tension only member design in High Seismic Zone

Tension only member design in High Seismic Zone

Tension only member design in High Seismic Zone

(OP)
Hi,
Any thoughts on design of bracing member in (high)seismic zone. AISC seismic provision (2005) restrict slenderness of V, inverted V bracings to 4*sqrt(E/f)for OCBF. Is this not applicable to cross bracings. My understanding is, we can design bracing members as 'tension only' only if they are in diagonal (cross) configuration and there is no upper limit of the slenderness to it. Where as V or inverted V type bracing should satisfy slenderness limit (as mentioned above) and should be designed for compressive forces, which means no 'tension only' analysis for these configuration.
I would be thankful for comments on this issue from you guys.

RE: Tension only member design in High Seismic Zone

I have not done much seismic design but this makes sense. Chevron or K (what you call V) bracing needs to take compression to work, cross bracing does not.

I have heard someone mention a minimum slenderness ratio for tension members though - this is supposedly to minimise vibration.

csd

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