some question

[mojtaba_khodayari]

hi,
I have 4 question:
1) i want to know what diffrence exsit between [QzSimple1 and QzSimple2], [TzSimple1 and TzSimple2] and [PySimple1 and PySimple2].
2) if i use beam with hinges for both beam and column in concrete frame,it will be good i use distrbuted load with eleload command or concetrated load in node with load command for gravity analysis. and then push my frame.beacuse i saw a note in PEER Annual Meeting San Francisco 2006 that Force-Based Nonlinear Beam Column Element useful for distributed loads along element.
3) in whole exmple all sections of beams and columns didn't change in top story of frame.(like practical cases) Does it has any reason? or only for simplicity.
4) when i use concrete01 that it was produced accoroding to kent park model, it isn't better i use kent park model for calculation confined concrete property instead of mander model.

sincerely yours,

[mojtaba_khodayari]

hi,
i really need answer to my question, please reply me