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

Related Articles


Question about ASCE 7 seismic loading

Question about ASCE 7 seismic loading

Question about ASCE 7 seismic loading

Section 12.5.3(a) states "100 percent of the forces for one direction plus 30 percent of the forces for the perpendicular direction" Does that mean take 30 percent of the forces in the perpendicular direction, add them to the forces in the first direction, then apply the results in the same same direction as the first direction, OR apply the 100 percent in the first direction and the 30 percent in the perpendicular direction?

RE: Question about ASCE 7 seismic loading

The latter - 100% in the primary and 30% in the orthogonal direction.

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

RE: Question about ASCE 7 seismic loading

Thank you for clearing that up for me.

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!


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