HYSTERICAL BEHAVIOR OF AN UPPER-BOTTOM FRICTION DAMPER SELF-CENTERING PRESTRESSED CONCRETE BEAM-COLUMN CONNECTION WITH HIDDEN CORBEL

MA; Junfeng; ZHOU; Zhen

doi:10.13204/j.gyjz202001004

Volume 50 Issue 1

Jan. 2020

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MA, Junfeng, ZHOU, Zhen. HYSTERICAL BEHAVIOR OF AN UPPER-BOTTOM FRICTION DAMPER SELF-CENTERING PRESTRESSED CONCRETE BEAM-COLUMN CONNECTION WITH HIDDEN CORBEL[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 16-21,124. doi: 10.13204/j.gyjz202001004

Citation:

MA, Junfeng, ZHOU, Zhen. HYSTERICAL BEHAVIOR OF AN UPPER-BOTTOM FRICTION DAMPER SELF-CENTERING PRESTRESSED CONCRETE BEAM-COLUMN CONNECTION WITH HIDDEN CORBEL[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 16-21,124. doi: 10.13204/j.gyjz202001004

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HYSTERICAL BEHAVIOR OF AN UPPER-BOTTOM FRICTION DAMPER SELF-CENTERING PRESTRESSED CONCRETE BEAM-COLUMN CONNECTION WITH HIDDEN CORBEL

doi: 10.13204/j.gyjz202001004

MA¹,
Junfeng^{1
,
,},
ZHOU²,
Zhen²

1. Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China;
2. Jiangsu Zhongnan Construction Industry Group Co., Haimen 226100, China

Received Date: 2019-09-25

Abstract

Abstract

The upper-bottom friction damper self-centering prestressed concrete beam-column connection with hidden corbel was numerically simulated by OpenSees to verify its hysteretic behavior, and analyzed the working mechanism and mechanical properties. The results showed that prestressed tendons provided self-centering capability to the connection, upper-bottom friction dampers were used to dissipate energy, and the hidden corbel was designed to improve the shear force transfer mechanism and reduce the difficulties of the fabrication. The cross-sectional area of the prestressed tendons, the initial prestressing forces and the friction forces of the friction damper were analyzed in order to study its hysteretic behavior and energy dissipation capacity. The results showed that the increase of cross-sectional area of the prestressed tendons could increase the second stiffness of the beam-column connection. The increase of initial prestressed forces could increase the gap opening forces of the beam-column interface. The increase of the frictions of the dampers could increase the gap-opening forces of the beam-column interface and energy dissipation performance.
- self-centering,
- friction energy dissipation,
- prestressed concrete beam-column connection,
- hysteretic curve,
- hidden corbel

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References(12)

References

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