Smart questions
Smart answers
Smart people
Join Eng-Tips Forums

Member Login

Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

Join Eng-Tips
*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 from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

DRsquare (Civil/Environmental) (OP)
2 Jun 04 18:34
I posed this question in Sturtural-other, but this looks like the better forum.  Please excuse the duplication, but my question is how to determine wind loads on open buildings with other than monoslope roofs.  ASCE-7 Chapter 6 seems to sidestep this issue entirely, as does the "Guide to ...".  I assume I've missed something.  I'm making a post mid-life change in area of specialization, and any help is appreciated.
Helpful Member!  ajh1 (Structural)
3 Jun 04 8:48
MBMA (Metal Building Manufacturer's Association) had information in their old manual for open conditions.  For wind that was blowing parallel to the frames, generally on the sidewalls of the building they stated the following:
For open buildings, a coefficient of +1.05 shall be applied to the covered areas of zones 1 and 5 (windward wall surfaces); a coefficient of -1.05 shall be applied to the covered areas of zones 4 and 6 (leeward wall surfaces).

For wind blowing perpendicular to the frames, generally on the endwalls of the building they stated the following:
A coefficient of 1.8N (N = number of frames) shall be applied to the solid area of the largest frame projected onto a plane normal to the ridge.
Additional information is available but is too voluminous to type here.  If you will post your email address, I will email the appropriate pages.  Note that these coefficients are based on the old fastest mile wind speeds, so may not be totally correct for use with newere 3-second gust wind speeds, but should get you close.
 use a factor of 1.05 on the windward surfaces and a factor of -1.05 on the leeward surface for any
DRsquare (Civil/Environmental) (OP)
3 Jun 04 9:14
Thanks, thats a big help.  My email is

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!

Back To Forum

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