Behaviour of double skin profiled composite shear wall system under in-plane monotonic, cyclic and impact loadings

Abstract

This research investigated the behaviour of a new form of composite shear wall system consisting of two skins of profiled steel sheeting and an infill of concrete under in-plane monotonic, cyclic and impact loading. The extensive experimental, analytical and numerical investigations of composite shear walls provided information on strength, stiffness, load-deformation response, steel sheet-concrete interaction, stress-strain characteristics and failure modes.Eight composite wall specimens with overall dimensions of 1626 mm (height) x 720 mm (width) were tested under monotonic, cyclic and impact loading. Steel sheet-concrete connections were provided by intermediate fasteners to generate composite action. Two types of steel sheets classified based on strength as mild and high strength and also, two types of concrete-infill namely Self-Consolidating Concrete (SCC) and Engineered Cementitious Composites (ECC) were used to construct the walls. An analytical model for shear resistance of the composite wall was developed based on existing models taking into account the shear capacity of the steel sheets, concrete core and steel-concrete interaction. Moreover, two non-linear finite element models for the composite wall under monotonic/cyclic and impact loading were developed using proprietary ABAQUS/CAE software. The performance of developed numerical models was validated against experimental results and then the models were utilized to carry out an extensive parametric study to understand the influence of material and steel-concrete interaction on the structural behaviour of the walls.

Axial Load Behaviour of Non-pierced and Pierced Double Skin Composite Walls Subjected to Elevated Temperature

“…The behavior of profiled steel sheeting and profiled concrete panels were also investigated (Wright and Hossain 1997;Hossain and Wright 1998b). Further investigation on the behavior of DSCWs under in-plane cyclic and impact loadings was conducted by Hossain et al (2004a), Rafiei et al (2009), andRafiei (2011). The sheet-concrete interface behavior in a composite wall is complex as profiled ribs play an essential role in providing a mechanical bond when steel tends to slide over the concrete after the failure of the chemical bond.…”

An investigation of the effects of aspect ratio and opening on CSPSW and TSCSW

“…In which, V s denotes the shear capacity of steel sheet, A s is the cross-sectional area of the steel sheet, l w denotes the projected length of the sheet and t s refers to the thickness of the sheet. Shear strength of the concrete infill panel was computed in the present study using the below equations (Rafiei, 2011):…”

“…Shear strength of the concrete infill panel was computed in the present study using the below equations (Rafiei, 2011):…”

“…According to this diagram, it is obvious that by changing the aspect ratio of both walls from 3:1 to 1:1, the energy absorption of both walls is increased approximately as much as 3.5 times. geometry of the DSCSWs, in this study, the pure shear of the plane stress version of the von-Mises criterion of the profiled steel sheets should be used as follows (Rafiei, 2011): According to shear stress obtained in Equation ( 2), the shear capacity of one profiled steel sheet can be calculated as follows:…”

“…In TSCSW, when the intermediate fasteners provide sufficient lateral supports to prevent early elastic buckling of the profiled steel plate, the shear capacity of the steel plate can be calculated using von-Mises failure criterion. With respect to the loading condition and geometry of the DSCSWs, in this study, the pure shear of the plane stress version of the von-Mises criterion of the profiled steel sheets should be used as follows (Rafiei, 2011):…”