| Title |
An Experimental Study on Comparison of the Hysteretic Behavior of RC Flat Plate and PT Flat Plate Interior Joints |
| Authors |
Lee Dong-Keun ; Ha Sang-Su ; Lee Moon-Sung |
| Keywords |
Flat plate ; Post-tension ; Tendon ; Interior joints ; Punching failure ; Drift capacity ; Ductility |
| Abstract |
Even though a flat plate system has many advantages such as reduced building height and various plan, it has a dangerous factor like punching failure. And the flat plate system (a gravity-force-resisting system) is deformed with the deformation of a lateral-force-resisting system including a shear wall or a special moment frame. This means that the system should fulfill the sufficient drift capacity when severe winds or earthquakes occur. However, there are not enough experimental results about the behavior of flat plates (especially about the??post-tensioned flat plates) under vertical and lateral loads. As a result of this and punching failure, nowadays the flat plate system is rarely used in Korea. So in this study, it was undertaken to investigate the comparison of the structural behavior of the post- tensioned flat plate and the reinforced concrete flat plate interior joints subjected to gravity and uniaxial loads. This study shows that both the RC flat plate and the PT flat plate are good for resisting the loads, and in particular, the PT flat plate is superior to the RC flat plate in terms of ductility, controlling crack, postponing stiffness deterioration, energy dissipation, etc. |