Search found 7 matches

by mfa
Mon Feb 16, 2015 8:40 pm
Forum: OpenSees.exe Users
Topic: multiple constraints
Replies: 1
Views: 1655

multiple constraints

Hi,
I would need, for a particular modelling, to update the constraints (fixity) of a certain node after application of the gravity load (before pushover analysis). I am wondering If anyone knows if there is any command in tcl or technique to do such a thing.

Thank you in advance,

Mohammad
by mfa
Thu Jan 19, 2012 5:33 pm
Forum: OpenSees.exe Users
Topic: Multi-phase analysis, Multi-step analysis
Replies: 3
Views: 2573

Re: Multi-phase analysis, Multi-step analysis

Thanks Vesna,
Could you suggest few keywords for searching the message board that helps me get there?
Appreciate your help
by mfa
Thu Jan 19, 2012 5:26 pm
Forum: OpenSees.exe Users
Topic: Limit state material-Shear Limit Curve
Replies: 2
Views: 3790

Re: Limit state material-Shear Limit Curve

Thanks Vesna
by mfa
Tue Jan 17, 2012 7:52 pm
Forum: OpenSees.exe Users
Topic: Multi-phase analysis, Multi-step analysis
Replies: 3
Views: 2573

Multi-phase analysis, Multi-step analysis

Hi, Does anybody know how I can change parameters of an element once a certain displacement limit has reached. In other words: 1) How can I monitor the deformation of an element (say that of a linear beam column element)during the course of dynamic analysis 2) Then is it possible to redefine the ele...
by mfa
Tue Jan 17, 2012 3:02 pm
Forum: OpenSees.exe Users
Topic: Limit state material-Shear Limit Curve
Replies: 2
Views: 3790

Limit state material-Shear Limit Curve

Hi all, I am trying to define a shear limit curve object to be used with limit state material. I need some advice or references to set up the relevant parameters. Anybody can explain about : 1)when should we use positive value for $Kdeg and when negative value for this parameter? 2)What are we actua...
by mfa
Tue Jan 17, 2012 12:59 am
Forum: OpenSees.exe Users
Topic: Limit state material-General failure Limit Curve
Replies: 2
Views: 2541

Limit state material-General failure Limit Curve

Hi all,
How can I define a general trilinear failure curve to be used with limit state material . I could not find any command in OpenSees Manual .
Appreciate your help
Mohammad
by mfa
Tue Apr 19, 2011 11:14 pm
Forum: OpenSees.exe Users
Topic: Rocking of objects subjected to ground motions
Replies: 1
Views: 1710

Rocking of objects subjected to ground motions

Hi. Is there a way to simulate rocking behavior of an object in OpenSees?