Pushover analysis error

[marafini.f]

Dear felice,

Could you please check the units you are using?

Be careful to be consistent with the unit system you choose to model.
For example, in you already have the value of self-weight of your material:

Reference unit system:
N = 1;
mm = 1;
s = 1;

rho = 2000 <kg/m^3> = 2e-09 <(N/(mm/s^2))/mm^3>
g = 9.81 <m/s^2> = 9810 <mm/s^2> (approximated)
thickness = 350 <mm>
sw = rho*g*thickness <N/mm^2> = 6.86e-03 <N/mm^2>

normally an error in the order of magnitude in terms of period is due to an error in order of magnitude of the mass application.

Francesca

[felicegiordano95]

This is the latest version of the model, I added a pillar that I forgot and the analysis doesn't work anymore .. I trust you, that you can help me and fix the file.
I apologize and thank you in advance.
Yours sincerely,
Felice Giordano

[felicegiordano95]

I solved it by myself, thanks anyway

[marafini.f]

well done!

[felicegiordano95]

However, I attach the file as we said yesterday, in order to correct any errors in it.
Thanks in advance.
Felice Giordano

[STKO Team]

I cannot find the error.
The analysis runs smoothly till 100% and I can see the post results as well

i1.png (133.33 KiB) Viewed 3733 times

i2.png (167.09 KiB) Viewed 3733 times

[felicegiordano95]

How can I model the slab with a plastic plate with a reinforcement inside (distribution net)?

[felicegiordano95]

I am attaching the model that I am trying to make work, but I know that I will have to change the "materials plastic damage concrete plane stress"

[marafini.f]

Dear felice,

I have the following suggestions for your model:

- PlasticDamageConcrete3d is really difficult to calibrate, I couldn't find any literature to study either so I would not be able to help it use it. I suggest you to use DamageTC3D, I input default parameters in your model that I attach here and you can study the following article to know more about how it works.

https://www.researchgate.net/publicatio ... hear_walls

- as the material you picked for the rebars is not correct, you should use the PlateRebar instead. There is a shear wall example modeled with Layered Shell and PlateRebar on our website (Massimo's webinar #02) and the same concepts can be applied to a slab.

Anyway even with these modifications your model does not run, was it working before?

Esempio 5.5_edits.scd.zip

(2.84 MiB) Downloaded 183 times

[felicegiordano95]

yes, the previous version is the 5.4 above and she also started the analysis and saw that it worked. how do i solve the problem?