Numerical investigation of reinforced concrete beams of tee section with tapered flange

Reinforced concrete beam of Tee section is an optimal beam and has special importance while the tapered con-figuration is a specific mechanism could be utilized in structural engineering to get optimum materials investment. This study, introduced numerical modeling of reinforced concrete beams of Tee section with tapered flange using ANSYS package. The comparison of numerical results with the available experimental results, in scope of ultimate strength, load-displacement relationships and other structural aspects; showed a good agreement. Besides, parametric study that related to the developed reinforced concrete beams, is concerned with many structural parameters such that uniformity of mid length within tapered length, steel reinforcement strength, concrete compressive strength and provided steel ratio. The re-sult depicts that the middle region uniformity within tapered domain assigned slightly effect on ultimate strength while the best flexural ductility and the best energy dissipation are predicted in a certain uniformity length (26 cm) which is in-dicated as optimum uniformity length that corresponding to ductility improving rate of 1.49 and energy dissipation en-hancement rate of 1.53. Besides, the ultimate strength get improving with reinforcement steel strength, reinforcement steel ratio increasing and the over increment turns the section to be over reinforcement section within certain limits.