ABSTRACT
Nevertheless, very little work has been done on the structural behavior of UHPSFRC systems on the basis of finite element analysis, because of the computational effort involved and the insufficient knowledge for the material behavior of UHPSFRC under biaxial stress states. Recognizing that many of the material models for biaxial loading condition have not been fully verified so far, it is one of the intent of this paper to address some of the model selection issues in the numerical analyses of UHPSFRC structures, in particular, with regard to the strength of reinforcing steel and the tension stiffening effect in concrete.
