Hysteresis Behavior of Recentering Diagonal Bracing Steel Frames Using a SMA Wire Bundle

Concentrically braced frames have complete truss behavior properties in which the structural elements are governed by axial forces in the elastic region. However, in a large earthquake action, inelastic deformation occurs to the brace elements and the connections, which causes a decrease in the inte...

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Bibliographic Details
Published inInternational journal of steel structures Vol. 21; no. 6; pp. 2045 - 2054
Main Authors Lee, Sung Ju, Kim, Joo-Woo
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Steel Construction 01.12.2021
Springer Nature B.V
한국강구조학회
Subjects
Axial forces
Civil Engineering
Earthquake resistance
Elastic deformation
Energy dissipation
Engineering
Materials Science
Scale models
Solid Mechanics
Steel frames
Structural members
Superelasticity
Wire
토목공학
Concentrically steel braced frames
Superelastic SMA
Energy dissipation
Recentering
Wire bundle brace
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Summary:Concentrically braced frames have complete truss behavior properties in which the structural elements are governed by axial forces in the elastic region. However, in a large earthquake action, inelastic deformation occurs to the brace elements and the connections, which causes a decrease in the internal resistance force and the energy dissipation capacity. Development of the possibility to return to the seismic resistance system without residual strain is necessary to solve this problem. In this paper, the steel frame of the superelastic SMA wire bundle brace with the proper type of connection is set up and an experimental test of one-half scale model is conducted to confirm its seismic applicability. This system effectively creates a system with an adjustable amount of re-centering, which can arguably be used in a wide spectrum of new and existing building structures.
ISSN:1598-2351
2093-6311
DOI:10.1007/s13296-021-00552-4