Search found 5 matches

by Anastasia Lyberaki
09 Oct 2025, 14:28
Forum: 04-Unexpected behaviour/errors
Topic: Plastic hinge behavior in SeismoBuild: bending vs shear failure
Replies: 5
Views: 4782

Re: Plastic hinge behavior in SeismoBuild: bending vs shear failure

I understand now — since SeismoBuild uses fiber modelling by default, the reduction of the bending moment capacity after hinge formation doesn’t follow the conventional M-θ curves defined in codes such as KAN.EPE., but is instead controlled directly by the stress–strain relationships of the fibers ...
by Anastasia Lyberaki
06 Oct 2025, 19:59
Forum: 04-Unexpected behaviour/errors
Topic: Plastic hinge behavior in SeismoBuild: bending vs shear failure
Replies: 5
Views: 4782

Plastic hinge behavior in SeismoBuild: bending vs shear failure

Hello,
When a plastic hinge forms at step n, at step n+1 the expected bending moment should be reduced to a maximum of 20% of the moment from step n. But in SeismoBuild, I see that the bending moment stays the same. Why does this happen?

Also, what happens if the plastic hinge forms earlier due to ...
by Anastasia Lyberaki
10 Sep 2025, 11:40
Forum: 04-Unexpected behaviour/errors
Topic: Shear capacity calculation problem
Replies: 9
Views: 32420

Re: Shear capacity calculation problem

Thank you very much for your answer.
In older beams, the longitudinal bars are inclined at the edges of the beams, and these bars can carry shear forces. Do you have any suggestions on how to account for the influence of these inclined bars on the calculation of shear capacity in SeismoStruct?
Would ...
by Anastasia Lyberaki
09 Sep 2025, 15:50
Forum: 02-Getting started with the modelling
Topic: Diaphragm
Replies: 1
Views: 7176

Diaphragm

Hello,
I would like to ask, if it is possible in Seismostruct to define a semi-rigid diphragm and not a constrain for all the nodes of each level. In addition, if a column starts from the base level to level 2, without connected with a floor (diaphragm) in level 1, for the seismostruct is considered ...
by Anastasia Lyberaki
07 Sep 2025, 14:27
Forum: 04-Unexpected behaviour/errors
Topic: Shear capacity calculation problem
Replies: 9
Views: 32420

Re: Shear capacity calculation problem

Dear Seismosoft team,
There is something weird on the calculation of shear capacity. I have modeled 3 beams with the same geometry and transvere bars, but the final shear capacity I get from Seismobuild is not the same for all beams according to KN.EPE. in RSA. How is it possible?
In addition ...

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