Mechanical Property Experiments and Finite Element Analysis of Joints Between H-Steel Beams and Columns After Fire

LIU Lianbo; ZHOU Ming; WANG Xintang

doi:10.13204/j.gyjzG22092306

Volume 52 Issue 12

Dec. 2022

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LIU Lianbo, ZHOU Ming, WANG Xintang. Mechanical Property Experiments and Finite Element Analysis of Joints Between H-Steel Beams and Columns After Fire[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 107-112. doi: 10.13204/j.gyjzG22092306

Citation:

LIU Lianbo, ZHOU Ming, WANG Xintang. Mechanical Property Experiments and Finite Element Analysis of Joints Between H-Steel Beams and Columns After Fire[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 107-112. doi: 10.13204/j.gyjzG22092306

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Mechanical Property Experiments and Finite Element Analysis of Joints Between H-Steel Beams and Columns After Fire

doi: 10.13204/j.gyjzG22092306

1. Faculty of Architectural Engineering, College of Science & Technology, Ningbo University, Ningbo 315300, China;
2. School of Civil Transportation Engineering, Ningbo University of Technology, Ningbo 315210, China

Received Date: 2022-09-23
Available Online: 2023-03-22

Abstract

Abstract

The quasi-static loading test and finite element analysis on three groups of joints between H-steel beams and columns after fire were conducted, M-θ hysteretic curves and M-θ skeleton curves were obtained, and the changes of the bearing capacity, stiffness degeneration, ductility and energy dissipation capacity for specimens were analyzed. The results showed that performance damage of bolts after fire caused degeneration of initial stiffness for joints; replacement of joint bolts after fire could improve the ductility, energy dissipation capacity and the stiffness of joints, but had little effect on the ultimate bearing capacity. The larger the axial compression ratio of column subjected to fire, the lower the bearing capacity, ductility, energy dissipation capacity and initial stiffness of the joint after fire; the protection measures of joints could improve the bearing capacity and ductility of joints after fire.
- joints between H-steel beams and columns,
- quasi-static loading,
- finite element analysis,
- energy dissipation capacity,
- bearing capacity after fire

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References(11)

References

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