×
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

Line Model Structural Connection Simulation

Line Model Structural Connection Simulation

Line Model Structural Connection Simulation

(OP)
Hi all,

Myself and a few of my colleagues are attempting to extrapolate a 2D benchmark model (of a 3-story building) being used for earthquake analysis with a 3D equivalent model. My team originally created the model using the traditional ANSYS GUI interface, but experienced several issues in the design of the connections and has since decided to start from the ground up with the ANSYS Workbench interface.

Due to the fact that CAD connection details are not directly available (only the connection action is specified, ie pin-pin, fixed-pin, etc), we are modeling the beams and columns of the structure as line elements and the slabs in the first/second floors and roof as surface elements. Our issue is arising in the Mechanical interface, again with the connections. After much trial and error with the various joints, I have been able to successfully create joint action between some of the beams and columns. However, I cannot develop proper joint action in terms of transfer of shear and moment between the members.

The only way that I have been able to avoid mesh errors is to create joints between members and points in the model using body-body connections. But, for example, if I create several fixed columns and then use body-body joints with fixed translations but free rotations (which I assume should mimic pin connections), I am still getting moment transfer from the beams to the columns. Similarly, fixed body-body connections do not transfer moment in the manner they should (positive moments at centers and negative moments at column edges) I need to be able to idealize the system so that proper action is achieved, so any help on that front would be much appreciated.

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