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作者:

Jiang, Ziqin (Jiang, Ziqin.) | Yang, Xiaofeng (Yang, Xiaofeng.) | Zhang, Ailin (Zhang, Ailin.) | Niu, Ziyao (Niu, Ziyao.) | Wang, Qi (Wang, Qi.)

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摘要:

Based on the ideas of damage control and slip based energy dissipation, two types of earthquake-resilient prefabricated cross joints were proposed in this paper.Low frequency cyclic loading tests and fatigue tests of three specimens and one repaired specimen were carried out to investigate the influence of the forms of web connector on the hysteretic behavior of these joints. Through this series of tests, several seismic behavior indicators such as the hysteresis curve, stiffness degradation curve and strain distribution on main components were obtained. The test results show that the proposed two types of prefabricated cross joints have excellent bearing capacity, energy dissipation capacity, ductility and plastic rotation capacity. The scheme of replacing the energy-consuming components such as the flange cover plates is applicable, since the energy dissipation capacity of the joints before and after the repair is stable, which can be used as a displacement-related damper. The forms of the web connectors have little influence on the bearing capacity and initial stiffness of the joint, but have a great influence on the joint rotation capacity and the stress of main beams. © 2020, Editorial Office of Journal of Building Structures. All right reserved.

关键词:

Bearing capacity Connectors (structural) Cyclic loads Damping Earthquakes Energy dissipation Fatigue of materials Fatigue testing Hysteresis Repair Stiffness

作者机构:

  • [ 1 ] [Jiang, Ziqin]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Jiang, Ziqin]Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Yang, Xiaofeng]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Zhang, Ailin]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Zhang, Ailin]Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Zhang, Ailin]Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 7 ] [Niu, Ziyao]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 8 ] [Wang, Qi]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [jiang, ziqin]beijing engineering research center of high-rise and large-span prestressed steel structure, beijing university of technology, beijing; 100124, china;;[jiang, ziqin]college of architecture and civil engineering, beijing university of technology, beijing; 100124, china

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来源 :

Journal of Building Structures

ISSN: 1000-6869

年份: 2020

期: 1

卷: 41

页码: 15-23

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 10

ESI高被引论文在榜: 0 展开所有

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