Steel and Composite Structures

  • 제18권5호
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  • Pages.1161-1176
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  • 2015
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Energy dissipation of steel-polymer composite beam-column connector

  • Wang, Yun-Che (Department of Civil Engineering, National Cheng Kung University) ;
  • Ko, Chih-Chin (Department of Civil Engineering, National Cheng Kung University)
  • 투고 : 2013.07.01
  • 심사 : 2014.11.10
  • 발행 : 2015.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

The connection between a column and a beam is of particular importance to ensure the safety of civil engineering structures, such as high-rise buildings and bridges. While the connector must bear sufficient force for load transmission, increase of its ductility, toughness and damping may greatly enhance the overall safety of the structures. In this work, a composite beam-column connector is proposed and analyzed with the finite element method, including effects of elasticity, linear viscoelasticity, plasticity, as well as geometric nonlinearity. The composite connector consists of three parts: (1) soft steel; (2) polymer; and (3) conventional steel to be connected to beam and column. It is found that even in the linear range, the energy dissipation capacity of the composite connector is largely enhanced by the polymer material. Since the soft steel exhibits low yield stress and high ductility, hence under large deformation the soft steel has the plastic deformation to give rise to unique energy dissipation. With suitable geometric design, the connector may be tuned to exhibit different strengths and energy dissipation capabilities for real-world applications.

키워드

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