Re: How to add a sequence cyclic load (force then displacement Cycles) and obtain hysteresis curves ?
Posted: 16 May 2020, 13:05
You can do this in two ways:
1) The easier is to use the static time-history analysis type, with a combination of force and displacement time-history loads. The force loading should be zero in the second part of the analysis and the displacement load should be zero in the first part of the analysis. Note however that this might not be feasible in the cases when the DOFs, where the displacement loads are applied in the second phase, need to be free to deform in the first part
2) With pushover analysis, using a sequence of load control and response control phases in opposite directions, i.e. (i) load control +X, (ii) load control -X, (iii) response control, +X, (iv) response control -X etc.
In any case, note that typically a static time-history analysis with displacement hysteretic loads should normally be sufficient in most cases of tests.
Seismosoft Support
1) The easier is to use the static time-history analysis type, with a combination of force and displacement time-history loads. The force loading should be zero in the second part of the analysis and the displacement load should be zero in the first part of the analysis. Note however that this might not be feasible in the cases when the DOFs, where the displacement loads are applied in the second phase, need to be free to deform in the first part
2) With pushover analysis, using a sequence of load control and response control phases in opposite directions, i.e. (i) load control +X, (ii) load control -X, (iii) response control, +X, (iv) response control -X etc.
In any case, note that typically a static time-history analysis with displacement hysteretic loads should normally be sufficient in most cases of tests.
Seismosoft Support