Compressive strength playing an important parameter for all structural members such as beam, slab, column and shear wall. In addition, the reinforcements in the tension zone is important to resist the internal tensile stress that developed due to apply loadings. in present study, the performance of high strength concrete beam under the effect of static loadings is evaluate. Different parameters are considering such as concrete compressive strength of 96.6, 118.3 and 135.5 MPa and different tensile reinforcement ratios of 0.98, 1.47, and 1.97% respectively using finite element approach by ANSYS. Dynamic as harmonic loading is adopting to evaluate the strength capacity and deformation of simply supported reinforced high strength concrete. The models that simulated same as the experiment work as geometry, supports conditions and loadings. Load- deflection, concrete strain, cracks propagations and ductility for all models are discussed. Analysis results indicated that the most important parameter the impact on the performance of high strength concrete beam is rebar’s ratio. The dynamic analysis of such a beams under harmonic loading within 0-50 Hz frequency rage is safe.