Search found 3033 matches

by vesna
Fri Aug 30, 2013 2:37 pm
Forum: OpenSees.exe Users
Topic: save opensees window
Replies: 4
Views: 1419

Re: save opensees window

you have to open a file for writhing (the first command in the example), then using "puts" command write lines into a file, and at the end you need to close the open file. All commands for doing this are given in the example.
by vesna
Fri Aug 30, 2013 2:33 pm
Forum: OpenSees.exe Users
Topic: connection between column and quad elements
Replies: 9
Views: 6720

Re: connection between column and quad elements

you need to tie the column and quad element using equalDOF command, but you need to tie them only in 2 DOFs.
by vesna
Fri Aug 30, 2013 2:30 pm
Forum: OpenSees.exe Users
Topic: Why do I get this error with ViscousDamper material
Replies: 3
Views: 6487

Re: Why do I get this error with ViscousDamper material

Try to contact the developer of the material.
by vesna
Thu Aug 29, 2013 1:37 pm
Forum: OpenSees.exe Users
Topic: Why do I get this error with ViscousDamper material
Replies: 3
Views: 6487

Re: Why do I get this error with ViscousDamper material

Are you using the latest version of OpenSees? This is a new material so you need to use the latest version of OpenSees for it to work.
by vesna
Thu Aug 29, 2013 1:35 pm
Forum: OpenSees.exe Users
Topic: Displacement Control Settings
Replies: 1
Views: 485

Re: Displacement Control Settings

Can you post the error messages?
by vesna
Thu Aug 29, 2013 1:33 pm
Forum: OpenSees.exe Users
Topic: shear computation in nonlinearBeamColumn Element
Replies: 3
Views: 3034

Re: shear computation in nonlinearBeamColumn Element

Can you post a simple example with only one element that demonstrates your problem?
by vesna
Thu Aug 29, 2013 1:14 pm
Forum: OpenSees.exe Users
Topic: Problem with moment curvature analysis
Replies: 3
Views: 1957

Re: Problem with moment curvature analysis

from what you have described it looks like you have an error in your fiber section. Here you can find an example of a rectangular hollow section:http://opensees.berkeley.edu/wiki/index ... on_Example
by vesna
Thu Aug 29, 2013 1:11 pm
Forum: OpenSees.exe Users
Topic: geometric transform problem
Replies: 1
Views: 539

Re: geometric transform problem

it looks to me that in your model you have force-based element of zero length.
by vesna
Thu Aug 29, 2013 12:08 pm
Forum: OpenSees.exe Users
Topic: double section
Replies: 3
Views: 2960

Re: double section

when defining the section set the local coordinate system at the centroid of the section and define the rest of the section relative to these coordinates. you can find many examples on how to build a fiber section here: http://opensees.berkeley.edu/wiki/index.php/Examples_Manual#Section_Modeling_And...
by vesna
Thu Aug 29, 2013 11:46 am
Forum: OpenSees.exe Users
Topic: CBF buckling bracing
Replies: 3
Views: 4819

Re: CBF buckling bracing

i think that you can use the basic principals proposed in that report to model X braces. just make sure to define the connection between two braces properly.
by vesna
Thu Aug 29, 2013 11:43 am
Forum: OpenSees.exe Users
Topic: save opensees window
Replies: 4
Views: 1419

Re: save opensees window

use "puts" command to write those lines into a file.

On page 8 of this file you will find an example on how to manipulate with the files:
http://opensees.berkeley.edu/wiki/image ... tarted.pdf
by vesna
Thu Aug 29, 2013 11:37 am
Forum: OpenSees.exe Users
Topic: How to model axial-flexural hinges in opensees
Replies: 5
Views: 4514

Re: How to model axial-flexural hinges in opensees

I believe that such code exists but unfortunately it is not documented. Look for it at the source code.
by vesna
Thu Aug 29, 2013 11:30 am
Forum: OpenSees.exe Users
Topic: double section
Replies: 3
Views: 2960

Re: double section

yes, you can do it.
by vesna
Thu Aug 29, 2013 11:29 am
Forum: OpenSees.exe Users
Topic: drift response
Replies: 11
Views: 6634

Re: drift response

I think that with the "remove element" command you can remove only one element. to remove all segments of the brace you will have to issue several remove element commands. if you do it within a loop it may not be that difficult.
by vesna
Thu Aug 29, 2013 11:24 am
Forum: OpenSees.exe Users
Topic: s-dof system
Replies: 1
Views: 457

Re: s-dof system

you can use zeroLength element to model the spring (http://opensees.berkeley.edu/wiki/index ... th_Element) and Rayleigh command (http://opensees.berkeley.edu/wiki/index ... ng_Command) to assign damping to it.