Hello, Nonlinear analysis experts.

I'm performing a static nonlinear pushover analysis of a RC shear wall as stated in the @Thomsen and @Wallace example (Thomsen, J. H., & Wallace, J. W. (2004). Displacement-based design of slender reinforced concrete structural walls—experimental verification. Journal of structural engineering. 130(4), 618-630.).

I used the ETABS 18.0.2 software to perform the analysis and construct the pushover curve. (the EDB file of the model is in the attachment field)

I used the wide-column approach to simulate the shear wall and assigned 6 fiber (auto) P-M-M hinges to account the nonlinear behavior of the wall.

More details about the shear wall are illustrated in the figure below.

https://1drv.ms/u/s!AkY2QDLZoMD1grYuooc75bod3XGtXg?e=dZPIyb

Also, the material behavior was extracted using a plot digitizer tool and implemented on ETABS.

Further details about the materials are down below.

(Concrete) https://1drv.ms/u/s!AkY2QDLZoMD1grYx2cELnxG5GZYVaA?e=cS8aNt

(Steel) https://1drv.ms/u/s!AkY2QDLZoMD1grYpsCG3e1OoWGBwEQ?e=SAfj4X

When I pushed the shear wall by a 141KN lateral force, it was expected to get a displacement of about 69.9mm, but the results were not as expected.

The last figure shows the comparison between the envelope of the experimental results and the resulted FE pushover curve.

https://1drv.ms/u/s!AkY2QDLZoMD1grYsa_V_vkpEiIjWww?e=bdLG4h

Any suggestions?