Search found 1979 matches

by STKO Team
Mon Sep 18, 2023 9:05 am
Forum: Analysis
Topic: Convergence Issue with Force Beam Element
Replies: 1
Views: 49

Re: Convergence Issue with Force Beam Element

First I suggest you use more reliable materials. Your concrete has some strange behavior (use the material tester and check it): CFail.png Also, your steel seems buggy, it does not provide any stress SFail.png Try something simpler like Concrete02 and Steel01 (or Steel02). Then you may improve the c...
by STKO Team
Mon Sep 18, 2023 8:22 am
Forum: Analysis
Topic: Convergence Error in SFI-MVLEM Model
Replies: 8
Views: 1901

Re: Convergence Error in SFI-MVLEM Model

You are modeling in N-mm: Try a higher reference horizontal load (for example 1.0e6) Now you have 1 N of reference load, so the load-multiplier (which is an unknown in the Displacement-Control) is very far from the solution. It's better to assign a reference load which is closer to the expected (so ...
by STKO Team
Mon Sep 18, 2023 7:50 am
Forum: Post Processor
Topic: Retrieve stresses on GaussPoint
Replies: 7
Views: 1098

Re: Retrieve stresses on GaussPoint

It's because the PIMY material gives you a 7-components stress vector (the first 6 are stress components, the last one is an internal variable). Therefore this line is not working as the result has a different name (7 instead of 6). Change this string stress = db.getElementalResult('stress (Volumes;...
by STKO Team
Thu Sep 14, 2023 12:24 pm
Forum: Analysis
Topic: Convergence Error in SFI-MVLEM Model
Replies: 8
Views: 1901

Re: Convergence Error in SFI-MVLEM Model

Just change the constraint handler from Transformation to Penalty. Now you have SP (imposed displacements) at the same place where you have MP constraints (EqualDOFs). This can give problems to the Transformation method. In cases where the SP and/or MP constraints overlap, just go with the penalty. ...
by STKO Team
Thu Sep 14, 2023 12:07 pm
Forum: Analysis
Topic: Running problem of sfsi model in webinar25
Replies: 19
Views: 3221

Re: Running problem of sfsi model in webinar25

You're welcome
by STKO Team
Thu Sep 14, 2023 12:06 pm
Forum: Interaction
Topic: Adding simple soil springs
Replies: 5
Views: 374

Re: Adding simple soil springs

You're welcome
by STKO Team
Tue Sep 12, 2023 10:47 am
Forum: Interaction
Topic: Adding simple soil springs
Replies: 5
Views: 374

Re: Adding simple soil springs

1) Should the duplicated faces be at the same location (overlapping) with the basement walls, or shoul there be any distance in between? If there should be a distance, what should it be? You can do whatever you want. A zero-length does not consider the distance between the nodes. But if you keep a ...
by STKO Team
Tue Sep 12, 2023 10:29 am
Forum: Analysis
Topic: Analysis using ASDAbsorbingBoundary3D
Replies: 43
Views: 6478

Re: Analysis using ASDAbsorbingBoundary3D

You're welcome
by STKO Team
Tue Sep 12, 2023 8:02 am
Forum: Geometry
Topic: Coupled shear walls with diagonal reinforcement
Replies: 3
Views: 1549

Re: Coupled shear walls with diagonal reinforcement

There are some mistakes in your model. Let's try to fix them one by one. You have several floating vertices (for example geometry 125, 126, etc...). They are not attached to anything so they will generate a singular stiffness matrix. Probably they come from your CAD drawing, but if a geometry will n...
by STKO Team
Mon Sep 11, 2023 2:19 pm
Forum: Analysis
Topic: Analysis using ASDAbsorbingBoundary3D
Replies: 43
Views: 6478

Re: Analysis using ASDAbsorbingBoundary3D

Hello, here is a follow up information. I have noticed that when I remove the soil on the sides of the basement walls, but keep the soil beneath the building, the drifts in the SSI model increase drastically (see below). I find this interesting, but I am having a hard time understanding why is this...