Shear Elastic Buckling and Resistant Behavior of Single-Side-Stiffened Steel Corrugated Shear Walls

• Published in: Buildings (Basel) Vol. 14; no. 12; p. 3925
• Main Authors: Zhang, Rui-Ze, Wu, Ruo-Min, Wang, Ling-Qi, Fu, Peng-Peng, Tong, Jing-Zhong
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.12.2024
• Subjects: Aspect ratio; Buckling; Comparative analysis; Construction; Curve fitting; Elastic analysis; Elastic buckling; elastic buckling performance; Elastoplasticity; Equivalence; equivalent flexural stiffness; Lateral forces; Load; Load resistance; Mathematical models; Numerical analysis; Seismic engineering; Shear strength; Shear walls; shear-resistant behavior; single-side stiffening system; Steel; steel corrugated shear walls; Steel structures; Stiffeners; Stiffness coefficients; Structural members; Theoretical analysis; Wall thickness
• DOI: 10.3390/buildings14123925
• ISSN: 2075-5309

Stiffened steel corrugated shear walls (SSCSWs) have achieved extensive applications in building structures and serve as efficient lateral force-resisting members. Single-side-stiffened steel corrugated shear walls (SS-SCSWs) are more flexible in terms of their structural configuration compared to conventional SSCSWs because this novel structural member effectively reduces wall thickness and simplifies the construction process. In this paper, numerical analyses were carried out to investigate the shear elastic buckling and resistant behavior of SS-SCSWs. A formula for the equivalent flexural stiffness of single-side stiffeners was given based on theoretical analysis. The elastic buckling and elastoplastic analyses of SS-SCSWs were carried out by finite element (FE) models to determine the value of the equivalent flexural stiffness coefficient. Meanwhile, the elastic and elastoplastic transition stiffness ratios of single-side stiffeners were proposed to predict the minimum stiffness required for the stiffener to provide sufficient constraint. The accuracy of the above formulas was verified by calculating the shear elastic buckling loads, the ultimate shear resistance, and the out-of-plane displacements of the SS-SCSWs. Furthermore, parametric analyses were performed to reveal the influences of the aspect ratio and plate thickness on shear resistance capacity. The equivalent flexural stiffness coefficients in both the elastic and elastoplastic analyses were determined to be 0.45 and 0.7, respectively, through curve fitting. The results indicated that the theory of BS-SCSWs could accurately predict the shear elastic and elastoplastic behavior of SS-SCSWs after modifying its expression for flexural stiffness. Consequently, the modified theoretical formulas were demonstrated to be suitable for SS-SCSWs in practical designs.