Effect of confinement of flanged wall-slab joint under lateral cyclic load

An analytical study has been made of the interaction between laterally loaded flanged shear wall and floor slabs in building with cross- shear wall. Particular attention has been paid to study the influence of Height of Shear Wall (H) and Effective width of the slab (We) on the performance of wall - slab joint in a multi-storey building with shear wall. To carry out the analytical investigations, the structure was modelled in a Finite Element software ANSYS (Version 10 [1]). The specimens were sorted into two groups (Type 1 and Type 2) based on the ratio of height of shear wall and the effective width of the slab (H/We). The joints are detailed as per the provisions given for beam - column joint in IS 13920 [2]. The models were subjected to displacement-controlled lateral cyclic loading applied at the slab end. The performance of the connections in terms of the Von Mises stress, load-displacement hysteretic behaviour, ultimate load and energy dissipation were compared. Type 2 model performed better when compared to Type 1 model in terms of strength and energy dissipation.