Search found 880 matches

by mhscott
Sun Dec 01, 2024 7:04 am
Forum: OpenSeesPy
Topic: Half-car model with CoupledZeroLength Elements
Replies: 3
Views: 803

Re: Half-car model with CoupledZeroLength Elements

I don't think the 'rigidDiaphragm' is doing what you want. Try using 'rigidLink -beam' instead.

https://portwooddigital.com/2023/04/02/ ... nto-a-bar/
by mhscott
Thu Nov 21, 2024 8:21 am
Forum: OpenSees.exe Users
Topic: OpenSees shear sign convention
Replies: 2
Views: 794

Re: OpenSees shear sign convention

It's unclear if you are trying to get an external end force or an internal section force.

Try a simpler model, like a simple span in 3D.
by mhscott
Wed Nov 06, 2024 8:34 am
Forum: OpenSees.exe Users
Topic: It is ok to use T-Beam to simulate the effect of slab?
Replies: 1
Views: 475

Re: It is ok to use T-Beam to simulate the effect of slab?

You will have to check the results yourself in order to answer that question
by mhscott
Wed Nov 06, 2024 8:32 am
Forum: OpenSees.exe Users
Topic: Problem with damping based on stiffness matrix
Replies: 2
Views: 683

Re: Problem with damping based on stiffness matrix

I believe you need to add the -doRayleigh option to the zero length element command
by mhscott
Sun Oct 20, 2024 5:32 am
Forum: OpenSees.exe Users
Topic: MultipleSupport output
Replies: 3
Views: 1517

Re: MultipleSupport output

Did you use Transformation constraint handler?
by mhscott
Sat Apr 27, 2024 3:40 pm
Forum: OpenSeesPy
Topic: Importing OP_vis
Replies: 1
Views: 4635

Re: Importing OP_vis

The `ops_vis` module is now in its own package.

https://github.com/sewkokot/opsvis
by mhscott
Tue Apr 16, 2024 4:53 am
Forum: OpenSees.exe Users
Topic: How to define damping ratio of vertical mode?
Replies: 1
Views: 5883

Re: How to define damping ratio of vertical mode?

The modes dictate which directions get the target damping ratios. All the other modes get whatever according to the damping spectrum.
by mhscott
Thu Mar 21, 2024 8:15 am
Forum: OpenSeesPy
Topic: Simultaneous multidirectional loading
Replies: 5
Views: 11843

Re: Simultaneous multidirectional loading

If you have doubts, perform simple analyses and check reactions and other easily verifiable responses.
by mhscott
Thu Mar 21, 2024 4:21 am
Forum: OpenSeesPy
Topic: Simultaneous multidirectional loading
Replies: 5
Views: 11843

Re: Simultaneous multidirectional loading

That should work
by mhscott
Wed Mar 06, 2024 10:57 am
Forum: OpenSeesPy
Topic: Cannot Solve Eigenvalues
Replies: 7
Views: 10650

Re: Cannot Solve Eigenvalues

I didn't see that. You'll have to figure out what's going on. Start with simple models and build up from there.
by mhscott
Wed Mar 06, 2024 9:29 am
Forum: OpenSeesPy
Topic: Cannot Solve Eigenvalues
Replies: 7
Views: 10650

Re: Cannot Solve Eigenvalues

I see. Your model has no mass.