Lateral Load Resistance of a Novel Connection Detailing for Structural Wall-Floor Slab Joint Region

摘要

The connection between shear wall and floor slab is an essential link in the lateral load resisting mechanism of slab-wall systems. By modifying the joint detailing pattern, performance of the connection under lateral loading can be improved to a great extent. For this purpose, novel ductile detailing with additional shear reinforcement in the joint core region has been proposed. This paper analyses some experimental results, relevant to three sub-assemblies' units tested under static lateral reverse cyclic loading, to evaluate the effect of the proposed joint detailing on the behavior of shear wall to floor slab joint region. Successively, three-dimensional nonlinear finite element models of the wall-slab joint sub-assembly were developed and analyzed using ABAQUS/CAE software. The provision of reinforcement in the core region of wall-slab joint for the construction of shear wall structures has been proven to be effective from the measured and computed results under cyclic loading. This paper thus verifies the viability of using the proposed type of joint detailing system in construction.