Steel and Composite Structures

  • 제15권3호
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  • Pages.323-342
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  • 2013
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Influence of steel-concrete interaction in dissipative zones of frames: II - Numerical study

  • Danku, Gelu (Department of Steel Structures and Structural Mechanics, Faculty of Civil Engineering - The "Politehnica" University) ;
  • Dubina, Dan (Department of Steel Structures and Structural Mechanics, Faculty of Civil Engineering - The "Politehnica" University) ;
  • Ciutina, Adrian (Department of Steel Structures and Structural Mechanics, Faculty of Civil Engineering - The "Politehnica" University)
  • 투고 : 2012.10.19
  • 심사 : 2013.07.17
  • 발행 : 2013.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the case of seismic-resistant composite dual moment resisting and eccentrically braced frames, the current design practice is to avoid the disposition of shear connectors in the expected plastic zones, and consequently to consider a symmetric moment or shear plastic hinges, which occur only in the steel beam or link. Even without connectors, the real behavior of the hinge may be different from the symmetric assumption since the reinforced concrete slab is connected to the steel element close to the hinge locations, and also due to contact friction between the concrete slab and the steel element. At a larger level, the structural response in the case of important seismic motions depends directly on the elasto-plastic behavior of elements and hinges. The numerical investigation presented in this study summarizes the results of elasto-plastic analyses of several steel frames, considering the interaction of the steel beam with the concrete slab. Several parameters, such as the inter-story drift, plastic rotation requirements and behavior factors q were monitored. In order to obtain accurate results, adequate models of plastic hinges are proposed for both the composite short link and composite reduced beam sections.

키워드

참고문헌

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피인용 문헌

  1. Modeling composite beams with partial interaction vol.114, 2015, https://doi.org/10.1016/j.jcsr.2015.07.007
  2. A review of research on steel eccentrically braced frames vol.128, 2017, https://doi.org/10.1016/j.jcsr.2016.07.032
  3. Finite Element Analysis of Composite Replaceable Short Links vol.763, pp.1662-9795, 2018, https://doi.org/10.4028/www.scientific.net/KEM.763.576
  4. Influence of Composite Slab on the Nonlinear Response of Extended End-Plate Beam-to-Column Joints vol.763, pp.1662-9795, 2018, https://doi.org/10.4028/www.scientific.net/KEM.763.818