Search found 10 matches

by lcasprini
20 Feb 2015, 01:36
Forum: 04-Unexpected behaviour/errors
Topic: Strange Normal Stress
Replies: 6
Views: 5363

Re: Strange Normal Stress

I can not find on the web a free version of the document that you mentioned, and then I have not read.

What do you mean practically to "remove mass DOFs in the z-direction" ??
What command should I enter?

Thanks
by lcasprini
16 Feb 2015, 12:13
Forum: 04-Unexpected behaviour/errors
Topic: Strange Normal Stress
Replies: 6
Views: 5363

Re: Strange Normal Stress

In the plastic phase of the column, the bending moment is coupled to the normal stress, then the hysteretic cycles are not acceptable??

Is there some trick to reduce the problem?

Thank You
by lcasprini
05 Feb 2015, 20:16
Forum: 04-Unexpected behaviour/errors
Topic: Strange Normal Stress
Replies: 6
Views: 5363

Strange Normal Stress

<t>I'm making a time history of a simple column. The column is a infrmFB, and at the base is applied an accelerogram. The hysteretic curves are ok, but how is possible that the normal stress in the column change so much? What's the matter? I tried it in the settings, in the discretization of the ...
by lcasprini
13 Nov 2014, 11:26
Forum: 03-Analytical/modelling capabilities
Topic: plastic curve plst
Replies: 11
Views: 15479

Re: plastic curve plst

I know. The factor "1" is a mistake that I already removed.
But as you said, is not the problem.
In general, the "plastic curve" seems not to work.

Although I continue to try.

Thank you for your help
by lcasprini
12 Nov 2014, 19:39
Forum: 03-Analytical/modelling capabilities
Topic: plastic curve plst
Replies: 11
Views: 15479

Re: plastic curve plst

<t>PLASTIC CURVE to MODELLING PURE FRICTION BEHAVIOR<br/>
<br/>
After many tests carried out with very simple models (eg: simply supported beam) I am not able to reproduce the right behavior of "plastic curve".<br/>
With a time history nonlinear analysis the link does not "start" even if the yield ...
by lcasprini
08 Nov 2014, 12:02
Forum: 03-Analytical/modelling capabilities
Topic: plastic curve plst
Replies: 11
Views: 15479

Re: plastic curve plst

I sent you an email.

Thank you.
by lcasprini
07 Nov 2014, 16:38
Forum: 03-Analytical/modelling capabilities
Topic: plastic curve plst
Replies: 11
Views: 15479

Re: plastic curve plst

<t>I tried to turn down to zero the yield strength F0.<br/>
I did a lot of tests and I never get high displacements.<br/>
Is not possible.<br/>
<br/>
There is probably something I do not know about Non-linear dynamic analysis or about the seismic response of the curves (loading and reloading.<br ...
by lcasprini
07 Nov 2014, 15:22
Forum: 03-Analytical/modelling capabilities
Topic: plastic curve plst
Replies: 11
Views: 15479

Re: plastic curve plst

<t><br/>
I used the same "plastic curve" to model the pure frictoion connections beam-Pillar in an industrial prefabricated building.<br/>
The yield force F0 is exceeded many times during the history of acceleration but the displacements are very small, and I would expect them to be much larger.<br ...
by lcasprini
29 Oct 2014, 14:14
Forum: 03-Analytical/modelling capabilities
Topic: Vertical earthquake component
Replies: 3
Views: 5668

Re: Vertical earthquake component

<t>I have a question about vertical earthquake component.<br/>
<br/>
I have realized that in seismostruct you can not insert more than one response spectrum.<br/>
Is that correct?<br/>
<br/>
So the only way to assess the vertical component is to enter the "vertical acceleration factor" inside the ...
by lcasprini
23 Oct 2014, 14:23
Forum: 03-Analytical/modelling capabilities
Topic: How to model prefabricated panels.
Replies: 1
Views: 2755

How to model prefabricated panels.

<t>Hi<br/>
I’m modeling a precast reinforced concrete industrial building. <br/>
There are prefabricated panels positioned outside the wire structure of the pillars, resting on the ground, connected to the pillars with steel elements. <br/>
<br/>
How can I model prefabricated panels? <br/>
<br/>
I ...

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