I have been trying to find a good way to apply displacement to the tip of the column in multiple load steps, so that, I can compare force-displacement results with the experiment. I can think of two alternative solutions:
1) Static pushover analysis for each displacement step: I set the maximum displacement as the displacements in the force-displacement pairs. Divided each analysis to 10 steps. However, I could not decide how to select the lateral load for the pushover.
2) Treat the problem as a support settlement problem and use sp command inside load pattern. However, I could not implement this solution, as I am not sure how to use pattern and sp commands together.
Do you think is there a better way of obtaining displacement-force graph for a given displacement set? If you have any other suggestions, please let me know.
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