| Title |
Lateral Capacity of Flat Plate-Column Connection with Shear Reinforcements |
| Authors |
Choi Jung-Wook ; Song Jin-Kyu ; Park Hong-Kun ; Kim Jun-Hee |
| Keywords |
Flat plate ; Shear reinforcement ; Lateral drift ratio ; Unbalanced moment |
| Abstract |
In flat plate buildings under lateral loadings, the punching shear strength of slab-column connection is a matter of concern. In the past, the slab design checked only punching shear strength but recently, the shear design process of slab have to consider the lateral resistance capacity(unbalanced moment capacity, ductility capacity and absorbed energy) Specially, however the lateral resistance capacity of the slab with shear reinforcement differs from reinforcement types, it lacks to explain these differences as shear design concept of the current code. Therefore this study presents the interrelation model of punching shear-unbalanced moment based on the eccentric shear stress model of the ACI and KCI building code and it contains ductility, drift capacity and failure mode. Authors apply the interrelation model in actual practice and analyse the respective differences of lateral resistance capacity. Unbalanced moment capacity varies with shear reinforcement types, and the specimen with shear reinforcements increases more lateral drift capacity than shear strength to that of without reinforcement. In addition, the effective width of the slab with reinforcement is extended than c+3h. |