Investigation on Effects of Concrete Properties on Seismic Behavior of Composite Steel Plate Shear Walls

Appropriate performance of composite section, and design codes approach to expand the utilization of this type of construction has led to increasing research on advantages of using composite steel plate shear walls as a lateral load resisting system and its adequate design criteria. The current research was carriedout to investigate the effects of increasing concrete compressive strength of composite columns on seismic behavior of composite steel plate shear walls by developing numerical models based on finite element method. For this purpose, several models of steel plate shear walls with composite columns, withthe same geometry were analyzed under seismic loading. Two different types of vertical boundaryelements were considered : (1) H-shaped steel section , (2) H-shaped steel section with concrete cast between the flanges. Beam to column joints were assumed as moment connections. The results were illustrated and compared in parameters such as : stiffness, load carrying capacity, energy dissipation capability, stress distribution pattern in steel plate shear walls.

Keywords:

Composite steel plate shear walls , Boundary elements , Non-linear analysis , Seismic behavior , Finite element Method