The Effect of Trapezoidal Corrugated Steel Plates and Coupling Beam Action on the Seismic Behavior of Coupled Steel Shear Wall Systems

Document Type : Research Article

Authors

1 Department of Civil Engineering, Science and research branch, Islamic Azad University, Tehran, Iran

2 Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

Abstract

Steel shear walls are one of the lateral load-resisting systems that have been considered by researchers and designers in the last four decades. Though steel shear walls have proven effective, they are limited due to the opening on their bay. To address this, coupled shear walls can be used. As a result, there has recently been widespread use of corrugated sheets in the steel shear walls for low- and mid-rise buildings. However, there are limited studies on the coupled shear wall. Hence, as a symbol of low- and mid-rise buildings, Abaqus software was utilized in this study to model and analyze samples of coupled steel shear wall 3-, 6-, and 12-story buildings under pushover analysis up to 4% roof drift. The effect of the trapezoidal corrugated steel plate with vertical and horizontal waves was investigated on the five key factors: bearing capacity, energy dissipation, degree of coupling, coefficient of behavior and ductility ratio of the coupled steel shear wall. Furthermore, the effect of increasing both the cross-sectional area of the coupling beam and the length of the coupling beam was assessed in this study. The results demonstrate that vertical and horizontal corrugated sheets cause a reduction of three factors: the base shear, degree of coupling, and energy dissipation. In addition, the behavior coefficient and ductility ratio decrease in the vertical corrugated sample and increase in the horizontal corrugated sample. Furthermore, increasing the beam's length or cross-sectional area causes a decrease in four factors: the bearing capacity, coefficient of behavior, ductility, and energy dissipation ratio. The degree of coupling decreases in the vertical corrugated samples and increases in the horizontal corrugated samples. Moreover, the degree of coupling increases in both cases of flat and corrugated steel sheets with increasing the number of stories.  
 

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References

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Amirkabir Journal of Civil Engineering
Volume 54, Issue 8
November 2022
Pages 2915-2934

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