Elasto-Plastic Behavior of Offset Beam-to-Column Connection Panels With Exterior Diaphragms

Matsuo, Shintaro; Oyamada, Takuro; Ikeda, Ryusuke; Tanaka, Tsuyoshi

doi:10.3130/aijs.78.1823

Cited by 6 publications

(2 citation statements)

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“…The steel frame structure was considered to have superior seismic performance according to assessment of its performance during the 1995 Kobe earthquake in Japan; however, it was found that the failure of the beam-column joints caused significant damage. The typical failure of traditional welded bending beam-column joints has caused many scholars to examine the cause of the fault and design potential alternatives and solutions for the joint connection structure; they have been trying to solve the problem of the brittle failure that occurs in steel beam-column joints in terms of joint connection form and design [8][9][10][11][12][13]. Subsequently, several studies and finite element analyses on the mechanical properties of panel zones have been carried out to assess the seismic performance of this structural system.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis and Parametric Study of Panel Zones in H-Shaped Steel Beam–Column Joints

Li,

Fan,

et al. 2023

Buildings

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This paper investigates the mechanical properties of a traditional welded rigid joint with a weakened panel zone under seismic load. The created finite element model is calibrated by the high-strength steel joint test, carried out by the team in the early stage, and the effectiveness of the finite element method was verified. The finite element software ABAQUS is used to investigate the influence of different joint web thicknesses on the mechanical properties of middle column joints under a low-cyclic-loading test. Supported by a validated numerical model, the ductility, energy dissipation, and other properties of different thicknesses of panel zone column webs are carefully analyzed. The results indicate that the thickness of the web plate in the panel zone significantly affects the location of the joint plastic hinge. The ultimate loading capacity of the joints increased significantly with an increase in the thickness of the webs in the panel zones. Compared with the joint with a weakened panel zone, the hysteresis curve of the strengthened joint is fuller; meanwhile, it cannot alleviate the stress concentration at the weld holes of the web. When the thickness of the joint domain web is too weak, excessive deformation in the joint domain will lead to a decrease in the bearing capacity of the joint, causing damage. The stiffness degradation coefficient of the web-thickened specimen was found to be dominated and controlled by the stiffness of the beam; however, with an increase in the thickness of the web, the stiffness degradation coefficient remained basically unchanged. Finally, a recommendation for weakened beam–column interior joints based on the steel frame panel zone is made, which will lay a foundation for the simulation and analysis of the seismic performance of this structure.

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Section: Introductionmentioning

confidence: 99%

Finite Element Analysis and Parametric Study of Panel Zones in H-Shaped Steel Beam–Column Joints

Li,

Fan,

et al. 2023

Buildings

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“…Weak panel zones are designed for the two specimens to drive plastic deformation in the panel zones, the plastic deformation will mainly develop in the panel zones without apparent plastic straining at the beam ends [5]. Studies [6][7][8] examine rectangular columns filled with concrete and the hysteresis loop model of the panel zone of H-shaped beams. Meanwhile, the experiments also focus on the mechanical properties of rectangular steel columns with outer ring stiffeners and irregular joint zones of H-shaped steel THE CIVIL ENGINEERING JOURNAL 4-2019 -------------------------------------------------------------------------------------------------------------- beams.…”

Section: Introductionmentioning

confidence: 99%

Influence of Panel Zone Sizes on Ultimate Bearing Capacity of H-Shaped Steel Frames

Zhang¹,

Liu²,

Yang³

2019

CEJ

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In order to explore the influence of panel zone sizes on the ultimate bearing capacity of Hshaped steel frames, this study examines a steel frame structure with cross-shaped sections consisting of beams, columns and panel zones based on mechanical equilibrium principles. The area ratio of either side of the flange to the web is taken as the main parameter.The results show that the ultimate bearing capacity ratio curves can be grouped into three types. For the first type, the plastic hinge is formed in the panel zone. For the second type, when Rpcb, the strong column factor, is greater than 1.2, the plastic hinge is formed at the beam end; otherwise the plastic hinge is formed in the panel zone. For the third type, when Rpcb≤0.8, the plastic hinge is formed in the panel zone; otherwise the plastic hinge is formed at the beam end. The ultimate bearing capacity ratio curves of the local section of H-shaped steel largely fall in the first curve type, and the ultimate bearing capacity is larger when the panel zone size is excluded from the calculation than otherwise with the former being one to five times as large as the latter.

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Experimental investigation on shear behavior of steel beam-to-CFST column connections with irregular panel zone

Mou

Bai

2018

Engineering Structures

130

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Elasto-Plastic Behavior of Offset Beam-to-Column Connection Panels With Exterior Diaphragms

Cited by 6 publications

References 0 publications

Finite Element Analysis and Parametric Study of Panel Zones in H-Shaped Steel Beam–Column Joints

Finite Element Analysis and Parametric Study of Panel Zones in H-Shaped Steel Beam–Column Joints

Influence of Panel Zone Sizes on Ultimate Bearing Capacity of H-Shaped Steel Frames

Experimental investigation on shear behavior of steel beam-to-CFST column connections with irregular panel zone

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