Search found 71 matches

by STKO Team
Tue Mar 31, 2020 12:57 pm
Forum: Geometry
Topic: Geometry Import
Replies: 1
Views: 5

Re: Geometry Import

Probably the IGS is corrupted. Can you post it here so we try to import and see what happes?
by STKO Team
Tue Mar 31, 2020 11:52 am
Forum: Property
Topic: Element modeling at the same nodes
Replies: 1
Views: 4

Re: Element modeling at the same nodes

Dear User, Please forget about the basic procedure of first creating nodes, and then elements that connect those nodes. This approach is the so called "orphane mesh" apprach (typical in software such as SAP2000 or MidasGEN). STKO instead is geometry-based. That is, you first draw a geometry and then...
by STKO Team
Tue Mar 31, 2020 10:09 am
Forum: Condition
Topic: Free Field & Lysmer Kuhlemeyer Boundary Condition
Replies: 13
Views: 634

Re: Free Field & Lysmer Kuhlemeyer Boundary Condition

Dear vokums, Yes it is correct, in 2D it is sufficient to increase the thickness Yes in 3D what we did is to increase the material properties. In fact in 2D what the element does is just getting the sigma and tangent tensor from the material and multiply them by the thickness before computing intern...
by STKO Team
Wed Mar 25, 2020 9:22 am
Forum: Installation issues
Topic: Running error
Replies: 2
Views: 26

Re: Running error

Dear user, That is not a bug, it is a normal behavior. Probably the first time you used STKO, you had 2 monitors connected to your PC. If this is the case, probably you moved the Physical Property Editor to the second monitor. Then if later on you switch off the second monitor, and you use only 1 mo...
by STKO Team
Tue Mar 24, 2020 10:56 am
Forum: Property
Topic: Question about Rectangular Fiber Section
Replies: 1
Views: 16

Re: Question about Rectangular Fiber Section

The rectangular fiber section is a special utility that builds a fiber section with 3 groups of fibers: fibers for rebars fibers for core concrete fibers for cover concrete core and cover fibers can have different materials. Now, if you provide the concrete material only for the cover, STKO will aut...
by STKO Team
Mon Mar 23, 2020 12:48 pm
Forum: Installation issues
Topic: Installation errors
Replies: 14
Views: 3775

Re: Installation errors

Try now
by STKO Team
Sat Mar 14, 2020 9:58 am
Forum: Property
Topic: Definition of Elastic Material
Replies: 2
Views: 61

Re: Definition of Elastic Material

When you define the Young's Modulus in the Elastic Section, it is meant to be the real elastic modulus of the material. However, in our last webinar of RC frame structure we were dealing with lumped plasticity. In that case I was using a reduced "E" in the Elastic Section to take into account the cr...
by STKO Team
Sat Mar 14, 2020 9:27 am
Forum: Post processing and data visualization
Topic: PLot Moment vs rotation for lumped zero length
Replies: 1
Views: 33

Re: PLot Moment vs rotation for lumped zero length

Dear Nicola, First, let me explain how you should interpret the results of a zeroLength element: A zero length element is a 2-node element with 1 integration point. So every time you want to visualize results on a zeroLength, use the GaussPlot. The zeroLength element in OpenSees can have up to 6 mat...
by STKO Team
Mon Mar 09, 2020 8:50 am
Forum: .tcl files
Topic: Import of tcl
Replies: 7
Views: 395

Re: Import of tcl

No, if you export TCL files and then you modify them manually you can't import them back in STKO. What you could do is to use the AnalysisStep "Custom command" that is basically a TCL script. It is typically used to create operations that are not available in STKO. In this way your TCL script is par...
by STKO Team
Fri Mar 06, 2020 4:52 pm
Forum: Analysis
Topic: Degradation in response
Replies: 1
Views: 220

Re: Degradation in response

It is really hard to answer without knowing how the author made its model in OpenSees. If you are using a fiber cross section, you will not observe cyclic degradation (if you are referring to cyclic degradation) unless one of the fiber materials has cyclic degradation in its formulation. For example...