With PLAXIS Output program a load-displacement curve can be generated by selecting post-calc nodes at the location of the load, for both the load value and the results of the soil. Then, provided that the calculation has enough steps stored, the curve can be created using the Curves manager.
However, this is also possible with the help of the ΣMstage - displacement curve. Let’s assume we have a distributed load q in the Plaxis model. To calculate the active load qactive in any calculation step, we use this:qactive = qphase,start + ΣMstage ( qphase,end - qphase_start)
in which qphase,start is the load value at the start of the phase (or actually the load value at the end of the previous phase) and qphase,end is the desired load value at the end of the current phase, i.e. the defined value in the Staged Construction settings.
If the load has just been activated in this phase, qphase_start = 0, so then this becomes just:qactive = ΣMstage * qphase,end
Now to construct the actual load-displacement curve:
How to get a load - displacement curve using Scripting interface