Structural Engineering and Mechanics

  • 제74권3호
  • /
  • Pages.395-406
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  • 2020
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Research on prefabricated concrete beam-column joint with high strength bolt-end plate

  • Shufeng, Li (School of Traffic and Transportation of Xu'chang University) ;
  • Di, Zhao (School of Traffic and Transportation of Xu'chang University) ;
  • Qingning, Li (School of Civil Engineering of Xi'an University of Architecture and Technology) ;
  • Huajing, Zhao (School of Science of Xi'an University of Architecture and Technology) ;
  • Jiaolei, Zhang (School of Civil Engineering of Xi'an University of Architecture and Technology) ;
  • Dawei, Yuan (School of Civil Engineering of Xi'an University of Architecture and Technology)
  • 투고 : 2019.10.28
  • 심사 : 2019.12.14
  • 발행 : 2020.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

Many prefabricated concrete frame joints have been proposed, and most of them showed good seismic performance. However, there are still some limitations in the proposed fabricated joints. For example, for prefabricated prestressed concrete joints, prefabricated beams and prefabricated columns are assembled as a whole by the pre-stressed steel bar and steel strand in the beams, which brings some troubles to the construction, and the reinforcement in the core area of the joints is complex, and the mechanical mechanism is not clear. Based on the current research results, a new type of fabricated joint of prestressed concrete beams and confined concrete columns is proposed. To study the seismic performance of the joint, the quasi-static test is carried out. The test results show that the nodes exhibit good ductility and energy dissipation. According to the experimental fitting method and the "fixed point pointing" law, the resilience model of this kind of nodes is established, and compared with the experimental results, the two agree well, which can provides a certain reference for elasto-plastic seismic response analysis of this type of structure. Besides, based on the analysis of the factors affecting the shear capacity of the node core area, the formula of shear capacity of the core area of the node is proposed, and the theoretical values of the formula are consistent with the experimental value.

키워드

참고문헌

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