Numerical Study on Corrugated I-Shaped Shear Link Damper
摘要
Shear metallic dampers were added to concentrically braced frames to enhance their ductile behavior. However, most dampers have poor initial stiffness and deformation resistance. To tackle this issue, shear link dampers with corrugated web plates were implemented. This study focuses on analyzing the effect of corrugations in I-shaped shear link dampers. The main objective is to investigate how parameters like the depth and thickness of the corrugation profile impact the performance of these dampers. The findings indicated that these dampers exhibit enhanced shear force resistance and deformation resistance. The corrugations in the web plate of I-shaped shear dampers enhance the damper’s out-of-plane stiffness and resistance to deformation, ultimately improving its performance. It was also found out that the depth of the corrugation profile in the web plate does not significantly affect the ability of the damper to withstand deformation, maintain rigidity, or dissipate energy. In contrast, increasing the thickness of the corrugations in the corrugated web plate greatly improves its ability to absorb energy, resist shear force, maintain rigidity, and display flexibility.