Steel and Composite Structures

  • 제40권2호
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  • Pages.255-266
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  • 2021
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Space grillage analysis model of steel-concrete composite beam

  • Lu, Pengzhen (College of Civil Engineering, Zhejiang University of Technology) ;
  • Li, Dengguo (College of Civil Engineering, Zhejiang University of Technology) ;
  • Wu, Ying (Jiaxing Nanhu University) ;
  • Huang, Simin (College of Civil Engineering, Zhejiang University of Technology) ;
  • Zhang, Yijie (College of Civil Engineering, Zhejiang University of Technology)
  • 투고 : 2020.02.04
  • 심사 : 2021.06.13
  • 발행 : 2021.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

In order to accurately grasp the mechanical behavior of the composite beam structure and achieve its refined analysis. In this paper, the stiffness matrix of a new type of spatial grid element is derived using the principle of energy variation. Based on the spatial grid element, a finite element analysis program is written using MATLAB software. A new type of spatial grid element analysis method that can be used for the overall force analysis of composite beam structures as well as the local refined analysis of the structure is proposed. In addition, the internal force, stress and displacement of each part of the composite beam can also be directly obtained. In order to verify the accuracy and reliability of the spatial grid analysis element proposed in this paper. The composite beam in the existing references are used as the analysis object, and the analysis result of the spatial grid element is compared with the references result. The research results show that the analysis results of spatial grid elements have high accuracy and can realize the refined analysis of composite beams.

키워드

과제정보

The authors gratefully acknowledge the financial support provided by the Science Foundation of China Postdoctor (Grant No. 2016M600352), the Science and Technology Agency of Zhejiang Province (Grant No. LGF19E080012) and the Science and Technology Project of Zhejiang Provincial Department of Transportation (Grant No. 2019H14 and 2018010). Jiaxing Science and Technology Bureau of China under Gra nt (2021AY10043).

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