Search found 132 matches

by BuuNguyen
Tue Nov 04, 2025 7:38 am
Forum: Post Processor
Topic: How to get internal shear forces, and base shear force in building
Replies: 2
Views: 3946

Re: How to get internal shear forces, and base shear force in building

Hi,

Can you please help me to write the code to get base shear force for my case?

I attached the .mpco file in the attachment.

Thank you so much,
Buu
by BuuNguyen
Wed Aug 13, 2025 5:01 am
Forum: Property
Topic: ASD absorb Boundary condition
Replies: 1
Views: 2228

ASD absorb Boundary condition

Hi STKO team,

I noticed that you were updating the ASD Absorbing boundary condition. I am curious that:

For PDMY material,
1/ G values change during running, depending on the strain level (nonlinearity effect). Have the new ASD absorbed BC included the variation of G values during running?
2/ G ...
by BuuNguyen
Wed Jul 30, 2025 6:25 am
Forum: Analysis
Topic: ASD absorb Boundary condition
Replies: 7
Views: 4643

Re: ASD absorb Boundary condition

Hi STKO team,

I noticed that you were updating the ASD Absorbing boundary condition. I am curious that:

For PDMY material,
1/ G values change during running, depending on the strain level (nonlinearity effect). Have the new ASD absorbed BC included the variation of G values during running?
2/ G ...
by BuuNguyen
Fri Feb 28, 2025 5:25 am
Forum: OpenSees SP
Topic: opensees sp vs opensees mp
Replies: 3
Views: 5187

Re: opensees sp vs opensees mp

Hi STKO team,

I am doing parametric study, and running many 2D numerical cases. I tried to run more than 10 cases simultaneously using Opensees, but the CPU usage is around 15%. Is there any method to employ fully the CPU capacity for running many cases simultaneously?

Thank you for your support ...
by BuuNguyen
Fri Feb 14, 2025 7:37 am
Forum: Condition
Topic: Non convergence problem due to large structural load
Replies: 1
Views: 2002

Non convergence problem due to large structural load

Hi STKO,
I am running a soil-pile interaction model. which is similar to your webinar 25. After applying self-weight load of soil, I apply structural load. However, there is a non-convergence issue during structural load application. I tried to reduced structural load by multiplying 0.1 --> It run ...
by BuuNguyen
Mon Feb 10, 2025 2:48 pm
Forum: OpenSees MP
Topic: Node can not be found due to partition
Replies: 3
Views: 3218

Re: Node can not be found due to partition

It worked well. Thank you so much.
Buu
by BuuNguyen
Fri Feb 07, 2025 10:49 am
Forum: OpenSees MP
Topic: Node can not be found due to partition
Replies: 3
Views: 3218

Node can not be found due to partition

Hi STKO support,

I am modeling dynamic problem with tied boundary condition (nodes with same elevation share the same DOF).

However, I am using partition to run parallel, which results in an error of non-finding node.
For example, in the attached files, if I partition into 2 parts --> it run well ...
by BuuNguyen
Tue Nov 26, 2024 1:47 pm
Forum: Analysis
Topic: Nothing to regenerate
Replies: 17
Views: 10904

Re: Nothing to regenerate

1, about InitialStateAnalysisWrapper, in the dynamic analysis of gravity balance simulation, some cases using (InitialStateAnalysis on/off), in some cases there is no use InitialStateAnalysis on/off), In opensees website (https://opensees.berkeley.edu/wiki/inde ... s_of_Slope) and OPenSesPL website ...
by BuuNguyen
Fri Nov 08, 2024 7:30 am
Forum: Property
Topic: No material provided in direction 5
Replies: 4
Views: 518

Re: No material provided in direction 5

Problem solved.
Thank you for your help,
Buu
by BuuNguyen
Fri Nov 08, 2024 2:24 am
Forum: Interaction
Topic: How to create a local axis with an angle
Replies: 2
Views: 2123

How to create a local axis with an angle

Hi STKO,
I am simulating a soil-pile interaction using py, tz, qz model. However, the piles are inclined with an angle of 20 deg with respect to vertical direction. Do you know how to create a local axis with an angle of 20 deg with respect to vertical direction? I can make a local axis with an ...