Catastrophic outcomes have been observed due to the sudden nature of reinforced slab-column joint failure under punching-shear. Additionally, accidental forces and forced deformations could lead to the development of membrane tensile forces in the joint. Only a handful of models have been developed to describe the full behavior of the joint. One of these is the pioneering model known as the critical shear crack theory (CSCT). However, this model does not consider the effect of membrane tension on the behavior of the joint. In the current study, an extended CSCT, which includes the effect of tension, is implemented. The Extended CSCT is validated using the existing experimental database tested over the last 6 decades. The proposed full behavior model is physically sound and consistent with experimentally observed behavior.