Search found 586 matches

by mhscott
Sun Apr 04, 2021 5:32 am
Forum: OpenSeesPy
Topic: EnvelopeDrift in openseespy
Replies: 4
Views: 696

Re: EnvelopeDrift in openseespy

The command format will be the same as Tcl.
by mhscott
Thu Apr 01, 2021 8:48 am
Forum: OpenSeesPy
Topic: EnvelopeDrift in openseespy
Replies: 4
Views: 696

Re: EnvelopeDrift in openseespy

I think so. Is the command giving an error? Please provide more details.
by mhscott
Thu Mar 25, 2021 11:04 am
Forum: OpenSees.exe Users
Topic: Automatic geomTransf vecxz
Replies: 4
Views: 668

Re: Automatic geomTransf vecxz

Yes, you have to use a different vector for elements that coincide with global vertical
by mhscott
Thu Mar 25, 2021 6:55 am
Forum: OpenSees.exe Users
Topic: Automatic geomTransf vecxz
Replies: 4
Views: 668

Re: Automatic geomTransf vecxz

You can do what's described in this post: http://portwooddigital.com/2020/08/08/a ... x-z-plane/

Python is shown in the post, but you can do the same thing with Tcl.
by mhscott
Wed Mar 24, 2021 6:09 am
Forum: OpenSeesPy
Topic: dispBeamColumn problem in openseespy
Replies: 2
Views: 510

Re: dispBeamColumn problem in openseespy

You define the sections in the beamintegration object.
by mhscott
Tue Mar 23, 2021 3:46 am
Forum: OpenSees.exe Users
Topic: [beginner question] nodal load constraint
Replies: 2
Views: 532

Re: [beginner question] nodal load constraint

For first order (linear) geometry, that is correct.
by mhscott
Tue Mar 23, 2021 3:43 am
Forum: OpenSees.exe Users
Topic: MP model can not convergy
Replies: 3
Views: 550

Re: MP model can not convergy

Try HystereticMaterial if you need a descending branch.
by mhscott
Sun Mar 21, 2021 4:45 pm
Forum: OpenSees.exe Users
Topic: equivalent masonry frame
Replies: 6
Views: 861

Re: equivalent masonry frame

The E values for your Elastic materials are VERY large. You could be running in to numerical conditioning issues.
by mhscott
Sun Mar 21, 2021 4:43 pm
Forum: OpenSees.exe Users
Topic: MP model can not convergy
Replies: 3
Views: 550

Re: MP model can not convergy

You should try your analysis with a different steel model. ReinforcingSteel is known to have some issues.
by mhscott
Sat Mar 20, 2021 10:07 am
Forum: OpenSees.exe Users
Topic: equivalent masonry frame
Replies: 6
Views: 861

Re: equivalent masonry frame

It's probably an error in your section definition. Not easy to tell without more context.
by mhscott
Sat Mar 20, 2021 6:59 am
Forum: OpenSeesPy
Topic: eleResponse for 3d moment-curvature analysis
Replies: 3
Views: 587

Re: eleResponse for 3d moment-curvature analysis

eleResponse is like a real-time recorder, giving you values only for the current time when the command is called.
by mhscott
Sat Mar 20, 2021 6:45 am
Forum: OpenSeesPy
Topic: eleResponse for 3d moment-curvature analysis
Replies: 3
Views: 587

Re: eleResponse for 3d moment-curvature analysis

You need to put the calls to eleResponse inside the analysis loop. Also, your GJ value of 1e99 is way too large! Not a problem here because the DOF is fixed, but would definitely cause problems in a building model. # Do the section analysis #ok = analyze(nk) j = 0 while j <= nk: j += 1 ok = op.analy...
by mhscott
Fri Mar 19, 2021 5:33 am
Forum: OpenSeesPy
Topic: I found a mistake
Replies: 1
Views: 507

Re: I found a mistake

The documentation is correct: https://openseespydoc.readthedocs.io/en ... ucWen.html

Was there an error in an example posted online?
by mhscott
Tue Mar 16, 2021 6:30 am
Forum: OpenSees.exe Users
Topic: Meshing in force beam column element
Replies: 1
Views: 514

Re: Meshing in force beam column element

This is probably not a fiber issue, but more of a constitutive model or analysis load step issue.