Computers and Concrete

  • 제20권6호
  • /
  • Pages.689-704
  • /
  • 2017
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experiments and numerical analyses for composite RC-EPS slabs

  • Skarzynski, L. (Faculty of Civil and Environmental Engineering, Gdansk University of Technology) ;
  • Marzec, I. (Faculty of Civil and Environmental Engineering, Gdansk University of Technology) ;
  • Tejchman, J. (Faculty of Civil and Environmental Engineering, Gdansk University of Technology)
  • 투고 : 2016.01.28
  • 심사 : 2017.08.10
  • 발행 : 2017.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

The paper presents experimental and numerical investigations of prefabricated composite structural building reinforced concrete slabs with the insulating material for a residential building construction. The building slabs were composed of concrete and expanded polystyrene. In experiments, the slabs in the full-scale 1:1 were subjected to vertical concentrated loads and failed along a diagonal shear crack. The experiments were numerically evaluated using the finite element method based on two different constitutive continuum models for concrete. First, an elasto-plastic model with the Drucker-Prager criterion defined in compression and with the Rankine criterion defined in tension was used. Second, a coupled elasto-plastic-damage formulation based on the strain equivalence hypothesis was used. In order to describe strain localization in concrete, both models were enhanced in the softening regime by a characteristic length of micro-structure by means of a non-local theory. Attention was paid to the formation of critical diagonal shear crack which was a failure precursor.

키워드

과제정보

연구 과제번호 : Innovative complex system solution for energy-saving residential buildings of a high comfort class in an unique prefabricated technology and assembly of composite panels

연구 과제 주관 기관 : National Centre of Research and Development NCBR

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