There is a deep beam of the main elements in the building for bearing and transferring forces, and also to control stresses and shear forces transmitted from the upper stories. The bearing capacity of the transferring beam is dependent on flexural deformation at the Local transferring structure, which is the source of the shear force resonance in the upper story of the transferring structure. We basically studied and used SAP2000 to model a 48(m) tall building which has changed structural system in 12(m) height (includes: a decrease frame span length from 18(m) to 6(m).and we also used an I shaped deep steel beam in this changed structural system.) The building has been spectral dynamically analyzed and controlled from the matters of drift, soft floor, equilibrium torsion structure, Shear lag and shear jump. As a result, for the first time ever we have succeeded in volume reducing the transitional floor by using a deep steel beam as a transferring beam structure. It should be noted that implementing a deep beam as a belt brace has a noticeable effect on stresses control and reduction of flexural deformation at the Local transfer structure.