Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections

ZHANG Zeyu; ZENG Lijing; WANG Yuedong; HOU Zhaoxin; LIU Xuechun; ZHANG Ailin; LI Weinan

doi:10.3724/j.gyjzG24022007

Volume 54 Issue 8

Aug. 2024

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2024 > 54(8): 62-69

ZHANG Zeyu, ZENG Lijing, WANG Yuedong, HOU Zhaoxin, LIU Xuechun, ZHANG Ailin, LI Weinan. Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(8): 62-69. doi: 10.3724/j.gyjzG24022007

Citation:

ZHANG Zeyu, ZENG Lijing, WANG Yuedong, HOU Zhaoxin, LIU Xuechun, ZHANG Ailin, LI Weinan. Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(8): 62-69. doi: 10.3724/j.gyjzG24022007

Citation:

ZHANG Zeyu, ZENG Lijing, WANG Yuedong, HOU Zhaoxin, LIU Xuechun, ZHANG Ailin, LI Weinan. Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(8): 62-69. doi: 10.3724/j.gyjzG24022007

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Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections

doi: 10.3724/j.gyjzG24022007

1. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structures, Beijing University of Technology, Beijing 100124, China;
3. National Steel Structure Engineering Technology Research Center, Beijing 100088, China;
4. Steel Structure Branch, China Jingye Engineering Technology Co., Ltd., Beijing 100088, China

Received Date: 2024-02-20
Available Online: 2024-09-19

Abstract

Abstract

The experiments under monotonic and cyclic loading conditions and simulation were conducted to investigate the mechanical properties of prefabricated Z-shaped steel beam-to-column connections. The rotational stiffness, failure mode, bearing capacity, hysteretic performance, energy dissipation, and stiffness degradation of Z-shaped connections with different designed strengths were studied respectively. The results showed that the prefabricated Z-shaped steel beam-to-column connections showed good ductility and could achieve plastic hinge movement outside the panel zone. The designed strength showed a significant effect on the hysteretic performance and plastic bending resistance of Z-shaped connections. The small value of designed strength parameter (0.2-0.9) made that the failure mode of Z-shaped connections was premature damage of bolts. The anti-slip and ultimate bearing capacity of Z-shaped connections increased linearly with the increase of designed strength, and the rotational performance of Z-shaped connections was semi-rigid. In case of the large value of designed strength parameter (0.9-1.3), anti-slip and ultimate bearing capacity of Z-shaped connections were almost unchanged. The failure mode was changed to premature damage of connected members, and the rotational performance of Z-shaped connections was rigid. In addition, the number of bolts required by the proposed Z-shaped connections was relatively small, and the installation was efficient and economical, which could contribute to engineering application.
- prefabricated steel structure,
- Z-shaped beam-to-column connection,
- experimental research,
- mechanical property,
- rotational stiffness

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References

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