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!

*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

ASCE 7 Wind Loads on Open Structures

ASCE 7 Wind Loads on Open Structures

(OP)
I have a question regarding ASCE 7-02 wind loads on open structures.  ASCE 7 seems to sidestep wind loads on open structures except for monoslope roofs.

Question:  Can I just calculate the wind loads based on the enclosed/partially enclosed figures & equations and exclude the internal pressure coefficients?  Also, same question for the components and cladding winds loads.  I'm designing a wood structure that only has a gable style roof and open walls.

Thanks in advance

Kirk

RE: ASCE 7 Wind Loads on Open Structures

The new ASCE7-05 has a much enhanced section on open coefficients, both MWFRS and components and cladding.  The new charts cover monoslope, gable with ridge, and inverted gable with valley.  They are still rather silent on what to do with elements of the building other than the roof surface that might be exposed to horizontal wind forces.

For low rise stuff, the coefficients for enclosed and partially enclosed are based on a wide range of wind tunnel tests and are more properly viewed as "envelope" conditions, i.e., they provide an upper bound for "all" possible arrangements.  Not sure how accurate they would be for open structures.  In some fashion you need to apply wind pressures to surfaces that would be impacted by horizontal loads and deal with the potential of multiple surfaces seeing the wind, not just the first surface the wind comes to.  There are times when the horizontal wind on an open building structure could be as high or higher than the equivalent enclosed structure fully sheeted.

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


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