Seismic Performance of Column-Tree Moment Connections with Slit Dampers

To fully develop the plastic deformation on the replaceable members of beam-column connections in steel frame, this paper proposes a kind of prefabricated earthquake-resilient column-tree moment connections with slit dampers. A numerical analysis was conducted to investigate the structural behavior...

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Bibliographic Details
Published in:KSCE journal of civil engineering 2022, 26(6), , pp.2789-2798
Main Authors: Xu, Ying-Lu, Hao, Ji-Ping, Su, Yao-Xuan, Shang, Yong-Fang
Format: Article
Language:English
Subjects:
Beam-columns
Civil Engineering
Deformation
Earthquake dampers
Earthquake resistance
Earthquakes
Engineering
Finite element method
Geotechnical Engineering & Applied Earth Sciences
Industrial Pollution Prevention
Numerical analysis
Plastic deformation
Plastic properties
Plasticity
Resilience
Seismic activity
Seismic response
Seismic stability
Slits
Steel frames
Structural behavior
Structural Engineering
토목공학
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Summary:To fully develop the plastic deformation on the replaceable members of beam-column connections in steel frame, this paper proposes a kind of prefabricated earthquake-resilient column-tree moment connections with slit dampers. A numerical analysis was conducted to investigate the structural behavior of the proposed connection. The finite element methods were validated through comparing the numerical results with test results. The results of numerical analysis showed that the column-tree connections with slit dampers could effectively move the beam plastic hinge to the slit dampers with the main components basically being in the elastic phase. The slit width and length was the main influence parameters, and the slit numbers and the gap between the slits had almost no influence on the hysteresis behavior of column-tree connections. The design theory of the slit dampers were developed to ensure that the slit dampers yield or stability failure before the yield of the stub beam and the common beam, so as to achieve the purpose of earthquake-resilience.
ISSN:1226-7988
1976-3808
DOI:10.1007/s12205-022-0834-6