Search found 6 matches

by mel
16 Feb 2010, 19:45
Forum: 03-Analytical/modelling capabilities
Topic: sol tol
Replies: 1
Views: 1531

sol tol

<t>Hi, <br/> <br/> I am doing a model which tests a composite beam-column sub assemblage. The model requires the use of "hinges" connected sometimes up to 4 elements. I have modeled the "hinges" as link elements which have a very high stiffness in all DOF except the M2 DOF which is very small. When ...
by mel
10 Feb 2010, 05:05
Forum: 03-Analytical/modelling capabilities
Topic: Stiffness in the M2 DOF
Replies: 3
Views: 2268

Re: Stiffness in the M2 DOF

<t>Hi, thanks for your previous reply. I have tried what was suggested. For the most part it works. However, When I need to utilize a linear-asymmetric link, the F3 DOF needs to be about 60kN/m and the M2 about 50. I want to create a spring that is completely rigid when compressed, and 0 stiffness w...
by mel
01 Feb 2010, 19:30
Forum: 03-Analytical/modelling capabilities
Topic: Stiffness in the M2 DOF
Replies: 3
Views: 2268

Stiffness in the M2 DOF

<t>Hello, <br/> <br/> I am trying to model a steel panel zone by having rigid elements (1m x 1m) as a rectangular perimeter and then a diagonal element connecting the opposite corners of the perimeter. The diagonal member is broken into two parts and a spring with only axial stiffness is added where...
by mel
12 Jan 2010, 19:53
Forum: 04-Unexpected behaviour/errors
Topic: could not re-orthogonalise all Lanczos vectors
Replies: 1
Views: 2619

could not re-orthogonalise all Lanczos vectors

I am trying to model a sub-assemblage of a composite structure. When running an eigenvalue analysis I get this response:

Warning: could not re-orthogonalise all Lanczos vectors.

What does this mean? and how can I fix this?
by mel
05 Jan 2010, 23:54
Forum: 03-Analytical/modelling capabilities
Topic: panel zone frame model
Replies: 1
Views: 1616

panel zone frame model

<t>I am trying to model the panel zone(s) of a composite sub-assemblage. In the model I am using there is a panel zone where the steel beam connects to the steel column and a panel zone above it where the concrete slab connects to the steel column. If I use rigid elements to represent the parameter ...
by mel
10 Dec 2009, 18:06
Forum: 02-Getting started with the modelling
Topic: Reinforcement in Composite Beam
Replies: 1
Views: 1550

Reinforcement in Composite Beam

<t>I’m trying to model a sub-assemblage of a steel column, steel-concrete composite beam. In the section tab the section type would be “cpis” however, I don’t see how the section allows for the influence of reinforcement in the slab. Is there a different way to model a composite beam which would acc...

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