Journal of Advanced Engineering and Technology (공학기술논문지)

Engineering Technology Institute of Chosun University (조선대학교 공학기술연구원)
권호 표지

Finite element analysis of shear connection in composite beams exposed to fire

전단연결재의 내화성능에 대한 유한요소해석

  • 임옥근 (얼스터대학교, 건축환경학부) ;
  • 최승관 (한국소방산업기술원, 소방기술연구소)
  • Received : 2018.10.02
  • Accepted : 2018.12.20
  • Published : 2018.12.31

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Abstract

A shear connection between the steel beam and concrete slab determines the stability of composite beams. An extensive numerical study to evaluate the resistance of the shear connection in a solid slab at high temperature was conducted. Three-dimensional thermo-mechanical finite element models were developed using a dynamic explicit method and concrete damaged plasticity model. Temperature-dependent plasticity parameters of the concrete model were proposed, and the accuracy of the developed model was obtained against experimental data. This investigation has revealed that a stud shearing failure occurs regardless of temperatures, and its shearing location changes in accordance with a rise in temperature. A new strength reduction formula has been presented to estimate the resistance of the shear connection at high temperatures.

Keywords

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