Performance criteria

[Tdwa]

I am checking the initiation of core concrete crushing using a strain value of 0.15.
When I use -0.15 as a strain value for the initiation of concrete core crushing, the value is not included in the hysteresis diagram. However, when I use a positive value of 0.15 for core concrete crushing in the performance criteria, it does appear on the hysteresis diagram during post-analysis.
I believe the value with a negative sign should used, but how can I fix it.

Please, any advice.

[seismosoft]

How do you obtain the hysteretic diagram? Note that the stress-strain diagrams are not output by default. One has to define the so called stress points (Output module) to obtain the stress-strain diagrams of specific monitoring points. Can it be that you are not monitoring the monitoring point that does not give the maximum negative stress? Refer to the Peak Strains and Stresses table.
Seismosoft Support

[Tdwa]

Thanks for your kind support.

I am referring to the hysteretic curve under the Global Response Parameters. I have defined the performance criteria in the Pre-Processor and wanted to know at what load and displacement for each criterion. Could you please check one of my models via the following link. I have defined the concrete crushing strain as -0.015 but did not show on the hysteretic diagram. however, if I change it to 0.015 (positive value) it does show the criterion on the hysteretic diagram.
https://www.dropbox.com/sh/mnz5g5twj9cz ... NG61a?dl=0


Thanks again.

[seismosoft]

What you get means that the (positive) tensile strain of 0.015 is indeed reached, whereas the (negative) compressive value of -0.015 is never reached (hence it is not shown).
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