×
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

Modelling Soils with Springs

Modelling Soils with Springs

Modelling Soils with Springs

(OP)
As an extension to the question already asked by "Sepultura" how would one model the soil spring as compression only - using ETABS.  Any hints/thoughts would be extremely appreciated.

RE: Modelling Soils with Springs

There is no automated way to do this like in SAFE. However, you can define Link properties, Gap type, and do joint assignments to put them at joints on your basemat. The stiffness values for the gap links would be determined by soil subgrade modulus, size of element and tributary area. The gap type links are nonlinear compression only joint springs. If you can live without the nonlinear compression-only analysis, ETABS lets you assign area springs on your basemat (modeled as slab/shell) in which you input subgrade modulus for vertical springs. Thing is, you have to remember to restrain the basemat in the local 1 and 2 lateral directions too, using area or joint springs or joint restraints, to prevent instabilities.

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