Search found 63 matches

by Ralazem
08 Jul 2021, 08:14
Forum: 03-Analytical/modelling capabilities
Topic: error in eigen value analysis
Replies: 9
Views: 5655

Re: error in eigen value analysis

Has this been determined to be a bug? I am having the same issue, and my nodes are coincidental. Only when trying to do an eigenvalue analysis does this occur.
by Ralazem
08 Dec 2020, 02:37
Forum: 03-Analytical/modelling capabilities
Topic: Complex Model Convergance
Replies: 2
Views: 1154

Re: Complex Model Convergance

Edit: I am running non linear time history analysis.
by Ralazem
07 Dec 2020, 07:10
Forum: 03-Analytical/modelling capabilities
Topic: Complex Model Convergance
Replies: 2
Views: 1154

Complex Model Convergance

Hello, I have a very complex model, with links/joints modelled at every connection in the building, and I am having issues getting it to converge. I have read most of the forms on convergence issues, as well as the seismosoft guide on convergence and tried applying these concepts, but it did not wor...
by Ralazem
07 Oct 2020, 00:22
Forum: 03-Analytical/modelling capabilities
Topic: RC JOINTS- Shear panel modelling
Replies: 13
Views: 3985

Re: RC JOINTS- Shear panel modelling

Can you provide any references or citations that confirm that theory please?
by Ralazem
05 Oct 2020, 01:22
Forum: 03-Analytical/modelling capabilities
Topic: RC JOINTS- Shear panel modelling
Replies: 13
Views: 3985

Re: RC JOINTS- Shear panel modelling

In the Yu dissertation, there are 3 important things that were considered in the joint model: 1) Bar slip springs 2) interface shear spring 3) shear panel rotational spring All the parameters were provided as well. The models provided by seismostruct only accounted for the first 2, and I need to kno...
by Ralazem
05 Oct 2020, 01:11
Forum: 03-Analytical/modelling capabilities
Topic: RC JOINTS- Shear panel modelling
Replies: 13
Views: 3985

Re: RC JOINTS- Shear panel modelling

This does not answer my question. I have gone through the link elements of these models very carefully, and while bar slip spring and interface shear spring were modelled, the shear panel interface was not included in your models and I am wondering why. Considering this was one of the verification f...
by Ralazem
02 Oct 2020, 06:06
Forum: 03-Analytical/modelling capabilities
Topic: RC JOINTS- Shear panel modelling
Replies: 13
Views: 3985

RC JOINTS- Shear panel modelling

I have been extensively studying the RC Joints (example 1) verification files (Ch4 joint 1,2,3) regarding the modelling of RC joints as I intend to model other RC joints. I have read the seismostruct verification document and the original dissertation by Yu regarding the joints to see how the parame...
by Ralazem
11 Jul 2020, 05:13
Forum: 03-Analytical/modelling capabilities
Topic: Hysteresis graphs
Replies: 9
Views: 2298

Re: Hysteresis graphs

So you suggest if I change the rotational response properties, I may get a lower peak?
Also I have set the plastic hinge at 50%, because the calculated PH ( originally 15%, and 10%)was causing higher peaks.
by Ralazem
09 Jul 2020, 02:10
Forum: 03-Analytical/modelling capabilities
Topic: Hysteresis graphs
Replies: 9
Views: 2298

Re: Hysteresis graphs

I've ruled out these factors " material strengths, modelling of confinement, modelling of shear failures,"
Modelling of second order effects is done automatically if I've ticked that box, isn't it? I am also using FBPH, so that should not be causing it.
by Ralazem
08 Jul 2020, 04:04
Forum: 03-Analytical/modelling capabilities
Topic: Hysteresis graphs
Replies: 9
Views: 2298

Hysteresis graphs

Hello,

I am doing some hysteresis verification of my own, and I notice that a constant problem is the peak forces don't match up with experimental results. The software always produces higher peaks. What could be causing that?

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