International Journal of Civil & Structural Engineering
Author(s) : ERTAN SULEV , FATIH ALTUN
Better understanding reinforced concrete behaviour greatly enhances ones grasp of design essentials and helps to improve them further. Therefore, especially laboratory research activities play an important role in designing earthquake resistant structures and retrofitting existing ones.Through experimental research activities fundamental principles can be put forward to prevent structures undergoing excessive damage during earthquakes. In this study it is aimed to present to seismic behaviour of a one-storey and one span reinforced concrete frame retrofitted by CFRP wrapping.Displacement controlled loading is applied and hysteretic curve of the system is obtained. The corresponding backbone curve is drawn and results are discussed in terms of strength and ductility. By identifying crack development in terms of crack locations and intensity it is aimed to track changes in system behaviour. With hysteretic curve has been demonstrated energy consumption. As a result of experimental data and analytical solution, force-displacement curve is defined and the reason of the change of behaviour is defined with the splitting of the cracks after peak displacements. The reason of the behaviour difference in non-linear region is judged as the splitting of the cracks reduces system stiffness.