Performance of Composite Shear Walls Subjected to In-plane Cyclic Loading - A Numerical Parametric Study

Abstract

An RC shear wall (wall1), a composite shear wall composed of a single external steel plate connected to a concrete panel (wall2), a composite shear wall constructed from two external steel plates connected to an internal concrete panel (wall3) and finally a composite shear wall fabricated with a single internal steel plate embedded within a concrete panel (wall4) are considered in this study and their behavior are assessed and compared under the effect of an in-plane cyclic load. Variation of the three functions include shear load capacity, energy absorption and shear stiffness of the walls are evaluated numerically using the ABAQUS finite element software. The performance of numerical models is validated against to the experimental results. The effects of four parameters consisting of compressive strength of concrete, yield strength of steel plate, height-to-length ratio of the wall and the thickness of the steel plate are investigated on the above-mentioned functions. Obtained results show that the wall4 has the best performance among all four types of shear walls. For instance, the energy absorption capacity of the wall4 is approximately two times greater than that of wall1 and wall2.

Numerical Study on the Seismic Performance of Hybrid Shear Walls with Centered Openings

“…Nevertheless, the energy dissipation capacity is much higher for this type of structural walls in comparison with other structural systems. The axial compression ratios, the strength of concrete in compression or the steel ratios embedded in the edges of the walls, are other parameters that present a significant impact over the hysteretic performance of composite steel-concrete shear walls, as Hu et al (Hu, 2021) and Labibzadeh et al (Labibzadeh, 2021) recorded in their research. In many studies found in the literature, the influence of these parameters on the seismic behaviour of the structural walls is investigated by performing numerical analyses besides the experimental tests, using finite element method and software's.…”