Abstract
Recently, corrugated steel plate shear walls have been shown to be an efficient lateral force resisting system for building structures. Corrugated plates have higher out-of-plane stiffness and improved buckling stability in comparison with flat plates which result in improved hysteretic behavior. However, the thickness of the corrugated plates may be limited due to the cold-form process restrictions. This paper investigates the cyclic performance of double corrugated steel plate shear walls. One-story single-bay specimen was designed and modelled and parametric studies were performed. The parametric study considered the orientation of corrugated plates (horizontal or vertical), disconnection of infill plates from columns, disconnection of infill plates from each other, infill plate thickness and infill plate aspect ratio on cyclic performance of double corrugated steel plate shear walls. The present study results show that proper selection of the aforementioned parameters can lead to a desirable cyclic performance. In the end, a recommendation for calculating initial stiffness and ultimate strength of double corrugated steel plate shear walls is given.
Highlights
Steel plate shear walls (SPSWs) have been widely used as a lateral force resisting system (LFRS) in building design and retrofit
To enhance the buckling load and hysteresis behavior of flat SPSWs, corrugated SPSWs were proposed by Emami et al [6]. They carried out laboratory tests to compare the cyclic performance of corrugated steel plate shear walls (CSPSWs) and a flat steel plate shear wall (FSPSW)
Parametric study includes the effect of corrugated plates orientation, whether corrugated plates are connected to the columns or not, whether corrugated plates are connected together or not, corrugated plate thickness (t) and double corrugated SPSWs (DCSPSW) aspect ratio (Ar)
Summary
Steel plate shear walls (SPSWs) have been widely used as a lateral force resisting system (LFRS) in building design and retrofit. To enhance the buckling load and hysteresis behavior of flat SPSWs, corrugated SPSWs were proposed by Emami et al [6] They carried out laboratory tests to compare the cyclic performance of corrugated steel plate shear walls (CSPSWs) and a flat steel plate shear wall (FSPSW). It was revealed that CSPSWs show significantly less pinching in their hysteresis loops than the FSPSW due to higher out of plane stiffness and buckling strength of corrugated plates with respect to flat plates. Cao and Huang [10] carried out experimental and numerical study on two CSPSWs and showed that by properly designing the geometry of corrugated infill plates, the CSPSWs could avoid elastic buckling. Bahrebar et al [16] studied the response of low yield point steel plate shear wall with curved corrugated web plates and reduced beam sections. Recommendations for calculating the initial stiffness and ultimate strength of DCSPSWs are given
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