Low-Cycled Hysteresis Characteristics of Circular Hollow Steel Damper Subjected to Inelastic Behavior

• Published in: International Journal of Steel Structures Vol. 19; no. 1; pp. 157 - 167
• Main Authors: Abebe, Daniel Y., Kim, Jin Woo, Gwak, Gyumyong, Choi, Jae Hyouk
• Format: Journal Article
• Language: English
• Published: Seoul Springer Science and Business Media LLC 01.02.2019; Korean Society of Steel Construction; Springer Nature B.V; 한국강구조학회
• Subjects: Circularity; Civil Engineering; Crack propagation; Deformation resistance; Earthquake dampers; Elasticity; End plates; Energy dissipation; Engineering; Failure analysis; Fatigue failure; Fatigue strength; Finite element method; Hysteresis; Low cycle fatigue; Materials Science; Metal fatigue; Seismic energy; Seismic engineering; Solid Mechanics; Steel structures; Welded joints; 토목공학; Quasi-static loading; Hysteresis characteristics; Aspect ratio; Circular hollow steel damper; Large deformation; FE analysis
• ISSN: 1598-2351; 2093-6311; 2093-6311
• DOI: 10.1007/s13296-018-0097-8

This study aims to evaluate hysteresis response behavior of circular hollow steel damper (CHSD). Steel dampers are a type of passive dampers and commonly used for seismic dissipation in civil engineering structures. Steel dampers are widely used for seismic energy dissipation because they are easy to install, maintain and they are also inexpensive. CHSD is among steel dampers which dissipates seismic energy through metallic deformation and geometrical elasticity of circular shape and fatigue resistance around welded connection to the end plates. Finite element analysis was conducted in order to evaluate the hysteresis characteristics and low cycle fatigue behavior of CHSD using failure index. To verify the analysis simulation quasi static loading was conducted and the result was compared and satisfactory result was obtained.