dynamic time history analysis (error message)

[meser]

Hi,

As I am running dynamic time history analysis, the analysis often stops and reports that "Unable to apply next load step. Analysis terminated".

what does that mean? Does it mean that there is a stability problem such as my system is not stable anymore.

Best regards.

[seismosoft]

Yes, it means that your structure cannot withstand any further loading, either because it became structurally unstable or because there is an error in the model.

Have a look at response parameters such as strains, storey drifts, etc, in order to understand better what is happening. (using the 'Performance Criteria' function may be useful for this)

Seismosoft Support