Your manual method does not fully account for the non-linearities in the system.
I don't understand why caesar II deactivates the support even if its not lift-off, I don't know how CAESAR II calculates or how does the software knows if its lifting off.
doesn't know the support lifts off. When you run the "T1+D1" case, you obtain a set of displacements. In this case, maybe a support lifted off, or maybe not. It really doesn't matter to
CAESAR II because you then setup the difference case ["W+P1+T1+D1" - "T1+D1"] with the net result being the "hot sustained. If a support lifted off, then the effect of the difference "W+P1" is computed without the support.
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