×
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

Seismic force distribution on silo

Seismic force distribution on silo

Seismic force distribution on silo

(OP)
I'm not sure how to distribute the base shear along the length of a silo.  For determining the overturning moment, does the base shear on a silo (contained mat'l is lime) act at the centroid of the structure?

RE: Seismic force distribution on silo

This answer is probably too late but my approach for what iys worth is:
If this silo rests on ground say, then conservative case is to assume seismic load as an inverted triangular distributed force (static equivalent). Thus CoG effetively at 2/3 height. This is the classical first mode response of an elastic vertical beam of uniform mass. It may be too conservative, depending on whether you are dealing with a 'deep' silo or 'shallow' silo.
If the silo is on legs then the response will be different. In this case I would probably assume seismic force acts at the real CoG.

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