The main goal of this work is the description, calculation and analysis of the structural behavior of flat slabs with punching in the area of eccentric arranged interior columns with shear reinforcement in form of steel mushrooms and double head bolts under momentshear force interaction. It will examine the behavior of moment-shear force interaction in the reinforced concrete ceiling at variable intervals of eccentric concentrated load acting. In addition, the structural behavior of interior columns with shear reinforcement will be modeled and calculated taking the momentum-shear interaction into account. The results will be summarized by several examples with different beta values in a unified calculation procedure for the eccentric punching. In the calculation the following methods are primary combined. - With the help of theoretical considerations and simplified support models (for example truss models) supporting- and failure mechanisms are illustrated and explained qualitatively and pictorially. - By means of a suitable linear 2D and 3D- finite- element model compared the punching positions are numerically simulated and single flat slab reinforced with steel mushrooms or double headed bolts. Thus, the structural behavior is within a shear reinforced area treated in fundamentals and analyzed in detail by numerical work.