Constitutive law for rebar in compression

[GiovMi]

I would like to suggest the implementation of the constitutive law of Dhakal and Maekawa for steel in compression, which includes buckling effects. Reference can be made to the following paper:

Dhakal, R. and Maekawa, K. (2002). "Modeling for Postyield Buckled of Reinforcement" J. Struct. Eng., 128(9), 1139-1147.

Kind regards

[seismosoft]

Thanks for the suggestion.

One question, however; how different is your proposed constitutive relationship with respect to the Monti-Nuti steel model, which is implemented in SeismoStruct?

Thanks again,

Seismosoft Support

[GiovMi]

Thank you for accepting my suggestion. The main difference between the Monti-Nuti and the Dhakal model is that the first is more complicated to be inputed but it is suitable for cyclic loading; in other hand the Dhakal model is very simple, defined just on the basis of the L/d ratio (ratio between the critical lenght and the bar diameter), but it is not calibrated for cyclic loading and consequently it is recommended for pushover analysis.
For further informations please do not hesitate to contact me at giovanni.minafo@unikore.it

Regards