Dr Mr Emami,

For concrete you may use the relations provided in CEB-FIB Modelcode 2010. For reinforcing steel you may try this one: http://dtic.mil/cgi-bin/GetTRDoc?AD=ADA500709 but it is a bit old and there are more recent studies, e.g. http://link.springer.com/article/10.1617/s11527-014-0273-z

Good luck!

thanck you very much.

I am working on the modeling of the optimal use of the steel heat produced in siderurgical plant, starting from the modeling of the mechanical properties of the steel using signomials models and neural networks, but the publications are in Spanish Lenguage. I am attaching you a publicaciuón in that language hoping that you will be able to traduce it into English..

Greetings,

José Arzola