×
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.

Students Click Here

ASCE 7-16 Wind

thread176-457279

ASCE 7-16 Wind

ASCE 7-16 Wind

(OP)
Is it just us or are the roof C&C wind charts a complete mess?

The charts show a scale value on the left side but then dictate an equation based on THETA (roof slope) that when plugged in to the equation don't come even close to the value of the line on the chart scale?
(Section 30.3 for example).

Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies

Replies continue below

Recommended for you

RE: ASCE 7-16 Wind

Hi JAE,

I did a quick check on one of them, and they seem OK to me.



The figures themselves are based on 45 degree slopes.
Also, please be careful not to trip up on the signs (-/+).

Maybe there is some curve which is inconsistent?

Thanks

-------------
Ilyas

RE: ASCE 7-16 Wind

ASCE 7 gets more unintelligible with each revision.

RE: ASCE 7-16 Wind

results in red color are correct.
perhaps you have used radian value instead of the 30 degrees value in the two equations.

RE: ASCE 7-16 Wind

The chart and equation are only the same if the slope is 45 deg, which is rare for a roof. Any other value of theta results in a different value than shown on the chart.

RE: ASCE 7-16 Wind

I'll pile on... the charts for canopy C&C pressures have no labels or equations. The user must resort to eyeballing the values on the curves. That's frustrating.



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! Already a Member? Login


News
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