×
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

Metal deck...rigid vs flexible diaphrams

Metal deck...rigid vs flexible diaphrams

Metal deck...rigid vs flexible diaphrams

(OP)
Risa 3d user's manual rcommends that un-topped metal deck  should be treated as a flexible diaphragm.  It is common practice in our locale to use metal roof deck as a non-flexible diaphragm.  If the decision is made to consider metal decking as a non-flexible diaphragm, would it then be appropriate to input the actual gage thickness as the diaphragm thickness?

RE: Metal deck...rigid vs flexible diaphrams

It would be appropriate to use the deck properties to create the plate elements which will make up the "diaphragm". Though you might want to reduce the G value for the material to account for fastener slip and such.   

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