×
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

Buckling of Curve Plate

Buckling of Curve Plate

Buckling of Curve Plate

(OP)
Hi All,
I am currently working on a Helical Stair Case made up of a Spiral Steel Plate as the interior stringer.  This plate is approximately 1.25" thick x 52" deep and it spans story to story making a 360 degree turn.  A finite Element Model has been built and stress on the plate seems to be okay.  However, does anyone has any suggestion on how to go about investigating the Buckling issue of the Curve plate?  Does anyone know of any formula or reference to determine the buckling load of a curve plate?

Thanks for your help
Kai Ki Mow

RE: Buckling of Curve Plate

Is the plate restrained at supports? If not restrained than buckling may pose a problem. That in turn will reduce its capacity.  

What software r u using?
Inform us of the connection details too.

Normally the flight lateral torsional buckling is controlled by the treads spanning between the 2 plates. These forces act inwards but at the same time allow for a spring action of the entire stairs especially when u have a 360 degree turn!.



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