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Nonlinear analysis (Push-over) using ETABS

Nonlinear analysis (Push-over) using ETABS

Nonlinear analysis (Push-over) using ETABS

(OP)
Hi,
I am doing a nonlinear push-over analysis using ETABS, I defined a concrete element with elastic properties + nonlinear stress-strain curve (calculated using other formulation, rather then that of Mander used by default in ETABS). and I want to consider the nonlinearity of the material in a pushover analysis.
Is it posible to make ETABS to consider the material nonlinearity of concrete without assigning hinges to the element (the material properties of the element is concrete)?
Also, I want to know how can I define a fiber section or fiber element in ETABS if one of them is available.

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