Numerical Study on the Seismic Behavior of Eccentrically Braced Composite Frames with a Vertical Low-Yield-Point Steel Shear Link

An eccentrically braced composite frame with a low-yield-point (LYP) steel shear link is an efficient energy dissipation system that exhibits good mechanical properties. However, existing experimental studies have not fully demonstrated the superiority and applicability of the structural system. We...

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Bibliographic Details
Published inBuildings (Basel) Vol. 12; no. 9; p. 1359
Main Authors Zhuang, Liang-Dong, Zhao, Ji-Zhi
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2022
Subjects
Alliances
composite frame
Concrete
Deformation
Design parameters
Design techniques
Eccentric bracing
Eccentricity
Energy dissipation
Finite element method
finite element study
low-yield-point steel
Mathematical models
Mechanical properties
Mechanics (physics)
Reinforcement (structures)
Seismic activity
Seismic response
sensitivity analysis
Shear
shear link
Stiffness
Structural steels
Webs (structural)
Yield point
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Summary:An eccentrically braced composite frame with a low-yield-point (LYP) steel shear link is an efficient energy dissipation system that exhibits good mechanical properties. However, existing experimental studies have not fully demonstrated the superiority and applicability of the structural system. We present a structural mechanics and finite element model analysis of an eccentrically braced composite frame with a vertical shear link. The effect of the design parameters on the seismic performance of the structure is analyzed. First, a theoretical model of the mechanics of the structural system is established to provide a comprehensive description of the key parameters. Then, a finite element model is developed using the computer program ABAQUS to analyze the mechanical and energy dissipation mechanisms. Finally, the beam-to-column stiffness ratio, shear link web thickness, shear link web width and length, and diagonal brace stiffness are analyzed to determine their effects on the mechanical properties of the structural system. Furthermore, some design parameter values are suggested.
ISSN:2075-5309
2075-5309
DOI:10.3390/buildings12091359