مطالعه مقايسهاي مدلهاي مشخصه دورهاي براي ميلگردهاي فولادي

The hysteretic behavior of reinforced concrete structures depends to a large extent on the hysteretic behavior of reinforcing steel. An accurate and computationally efficient numerical model of reinforcing steel is, thus, very important in the analysis and evaluation of these structures under cyclic loads, including earthquake loads. In this paper, important approaches in modeling of cyclic behavior of reinforcing steel are reviewed and studied. Then, Important and common models are verified against experimental data available in the literature and their accuracy and field of application are discussed.