The Hysteresis Behavior of Steel Beam–Column Joint with the Load Bearing-Energy Dissipation Connection for Converter Station Building
Abstract
:1. Introduction
2. The Test Program
2.1. The Tested Specimens
2.2. The Test Scheme
3. Results and Discussion
3.1. The Test Phenomena
3.2. The Test Results
3.2.1. Hysteresis Curves
3.2.2. Skeleton Curves
3.2.3. Primary Performance Results
3.2.4. Energy Dissipation
4. Finite Element Analysis
4.1. Finite Element Model
4.2. Model Validation
4.3. Parametric Study
4.3.1. The Slip Length
4.3.2. The Width of the Sliding Steel Fuse
4.4. Mechanical Mechanism Analysis
5. Conclusions
- (1)
- The beam–column joint with the load bearing-energy dissipation connection could develop two-stage load–deformation characteristics, featuring a friction mechanism and bearing mechanism. The hysteresis behavior of the BCJ-BEDC was stable without obvious degradation, and the maximum drift could exceed 1/30.
- (2)
- The friction mechanism caused by the slipping behavior could improve the stress development of the framing components, and it also improved the energy dissipation behavior. The bearing mechanism was conducive to the bearing capacity, while it resulted in more serious development of the plastic behavior of the BEDC.
- (3)
- The slip length greatly influenced the load–deformation behavior of the BCJ-BEDC. A shorter slip length led to a higher bearing capacity, while it might reduce the energy dissipation capacity. The bolt distance primarily affected the ductility and the bearing capacity, which were improved through a larger bolt distance. The width of the sliding steel fuse primarily affected the bearing behavior and the degradation behavior.
- (4)
- The stress development of the BEDC was more serious than the framing components, and the Mises stress in the framing component did not exceed the yield strength during the whole loading process. The stress of the BEDC developed more quickly in the bearing stage, and the stress development was more adequate. The plastic behavior of the BCJ-BEDC was concentrated on the BEDC, especially on the sliding steel fuse.
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Specimen No. | t/mm | d/mm | Ls/mm | D/mm |
---|---|---|---|---|
BCJ-BEDC 1 | 14 | 160 | 4 | 70 |
BCJ-BEDC 2 | 14 | 160 | 2 | 70 |
BCJ-BEDC 3 | 14 | 160 | 4 | 128 |
BCJ-BEDC 4 | 14 | 160 | 2 | 128 |
Member | Grade | t/mm | fy/MPa | fu/MPa | εy/με |
---|---|---|---|---|---|
Column flange | Q345 | 16 | 391 | 560 | 2519 |
Beam flange | 14 | 400 | 561 | 2540 | |
Flange cover plate | 12 | 387 | 554 | 2579 | |
Steel plate damper | Q235B | 14 | 284 | 391 | 1759 |
Specimen No. | Δy/mm | Py/mm | Δu/mm | Pmax/kN | μ | μ |
---|---|---|---|---|---|---|
BCJ-BEDC 1 | 39.4 | 76.6 | 117.2 | 82.2 | 2.97 | 3.47 |
−30.5 | −77.5 | −121 | −81.9 | 3.97 | ||
BCJ-BEDC 2 | 44.8 | 88.3 | 117.8 | 104.2 | 2.63 | 3.35 |
−29.6 | −85.8 | −120.3 | −82.3 | 4.06 | ||
BCJ-BEDC 3 | 51.9 | 78.1 | 115.7 | 92.1 | 2.23 | 2.36 |
−48.6 | −63.2 | −121 | −78.9 | 2.49 | ||
BCJ-BEDC 4 | 58.8 | 98.3 | 115.1 | 121.1 | 1.96 | 2.67 |
−35.4 | −96.5 | −119.5 | −103.5 | 3.38 |
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Gao, X.; Lin, S.; Liu, R.; Chen, X. The Hysteresis Behavior of Steel Beam–Column Joint with the Load Bearing-Energy Dissipation Connection for Converter Station Building. Buildings 2024, 14, 2424. https://doi.org/10.3390/buildings14082424
Gao X, Lin S, Liu R, Chen X. The Hysteresis Behavior of Steel Beam–Column Joint with the Load Bearing-Energy Dissipation Connection for Converter Station Building. Buildings. 2024; 14(8):2424. https://doi.org/10.3390/buildings14082424
Chicago/Turabian StyleGao, Xian, Shaoyuan Lin, Ruyue Liu, and Xilong Chen. 2024. "The Hysteresis Behavior of Steel Beam–Column Joint with the Load Bearing-Energy Dissipation Connection for Converter Station Building" Buildings 14, no. 8: 2424. https://doi.org/10.3390/buildings14082424