A plate-shaped structural component of a gas turbine with a base body that, at least in one edge area, is provided in one piece with a side bar that is embodied to ne substantially rectangular to the surface of the base body, wherein the base body has a different thickness than the side bar, wherein a supporting body, which is connected in one piece with the base body and the side bar and is provided with a substantially triangular cross section, is arranged between the side bar and the base body, being provided with multiple slit-like recesses.