Steel and Composite Structures

  • 제21권3호
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  • Pages.537-551
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Study on mechanical performance of composite beam with innovative composite slabs

  • Yang, Yong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Yu, Yunlong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Zhou, Xianwei (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Roeder, Charles W. (Civil and Environmental Department, University of Washington) ;
  • Huo, Xudong (School of Civil Engineering, Xi'an University of Architecture & Technology)
  • 투고 : 2015.10.06
  • 심사 : 2016.05.09
  • 발행 : 2016.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

A new type of composite beam which consists of a wide flange steel shape beam and an innovative type of composite slab was introduced. The composite slab is composed of concrete slab and normal flat steel plates, which are connected by perfobond shear connectors (PBL shear connectors). This paper describes experiments of two large-scale specimens of that composite beam. Both specimens were loaded at two symmetric points for 4-point loading status, and mechanical behaviors under hogging and sagging bending moments were investigated respectively. During the experiments, the crack patterns, failure modes, failure mechanism and ultimate bending capacity of composite beam specimens were investigated, and the strains of concrete and flat steel plate as well as steel shapes were measured and recorded. As shown from the experimental results, composite actions were fully developed between the steel shape and the composite slab, this new type of composite beams was found to have good mechanical performance both under hogging and sagging bending moment with high bending capacity, substantial flexure rigidity and good ductility. It was further shown that the plane-section assumption was verified. Moreover, a design procedure including calculation methods of bending capacity of this new type of composite beam was studied and proposed based on the experimental results, and the calculation methods based on the plane-section assumption and plastic theories were also verified by comparisons of the calculated results and experimental results, which were agreed with each other.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Experimental study on flexural performance of partially precast steel reinforced concrete beams vol.133, 2017, https://doi.org/10.1016/j.jcsr.2017.02.019
  2. Contribution of perforated steel ribs to load-carrying capacities of steel and concrete composite slabs under negative bending vol.21, pp.12, 2018, https://doi.org/10.1177/1369433218758774
  3. Mechanical Behavior of Steel–HFRC Composite Girders vol.23, pp.10, 2018, https://doi.org/10.1061/(ASCE)BE.1943-5592.0001275
  4. Static Experiment on Mechanical Behavior of Innovative Flat Steel Plate-Concrete Composite Slabs vol.18, pp.2, 2018, https://doi.org/10.1007/s13296-018-0012-3
  5. Shear lag effect in steel-concrete composite beam in hogging moment vol.31, pp.1, 2019, https://doi.org/10.12989/scs.2019.31.1.027
  6. Investigation on mechanical performance of flat steel plate-lightweight aggregate concrete hollow composite slab vol.31, pp.4, 2019, https://doi.org/10.12989/scs.2019.31.4.329
  7. Experimental and numerical study of continuous span concrete composite slabs vol.34, pp.None, 2021, https://doi.org/10.1016/j.istruc.2021.08.043