Investigation of ductility effect on reinforcement concrete sections

In this thesis study, the factors effecting of the curvature and system ductility of reinforced concrete member are investigated. For this purpose, confined and unconfined concrete models in literature are used separately. The factors effecting the confinement behavior are also taken into consider.The SEMAp analysis programme used in the section effects calculations. With this Analysis programme, effects of different concrete compression strength, anchor tension strength, tension ? compression anchor ratios and confinement anchor rations to ductility are investigated by using fifty-one considered reinforcement section. Using obtained results of these mentioned effects, a new equation has been improved with SAS statistic programme.At the last part of the study, effects of different parameters to the ductility, has given with details. And, it has detected that, the equation improved in this study gives acceptable results.