한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제17권4호
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  • Pages.167-174
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  • 2017
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  • 1598-4095(pISSN)
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  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
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3D 프린터로 제작된 비정형 거푸집의 최대 측압에 대한 유한요소해석

Evaluation of Maximum Lateral Pressure on the 3D Printed Irregular-Shaped Formwork by Finite Element Analysis

  • 이정호 (고려대학교 건축사회환경공학부) ;
  • 주영규 (고려대학교 건축사회환경공학과) ;
  • 김학범 (고려대학교 건축사회환경공학부)
  • Lee, Jeong-Ho (School of Civil, Environmental, Architectural Engineering, Korea University) ;
  • Ju, Young K. (School of Civil, Environmental, Architectural Engineering, Korea University) ;
  • Kim, Hak-Beom (School of Civil, Environmental, Architectural Engineering, Korea University)
  • 투고 : 2017.11.24
  • 심사 : 2017.12.04
  • 발행 : 2017.12.15
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초록

The F3D(Free-Form Formwork 3D Printer) technology that manufactures EPS(Expanded Polystyrene) formworks for irregular-shaped concrete structures by 3D printers was developed to reduce the cost and time. Because of weak strength and low elastic modulus of the EPS, structural performance including lateral pressure by fresh concrete of the formwork that consisted of EPS should be investigated. In order to calculate lateral pressures acting on formwork, several variables including sizes, shapes of formwork, tangential force(fricition) between fresh concrete and formwork, and material properties of fresh concrete should be considered. However, current regulations have not considered the properties of concrete, only focused on vertical formwork. Galleo introduced 3-dimensional finite element analysis models to calculate lateral pressure on formwork. Thus, proposed finite element analysis model based on previous studies were verified for vertical formwork and irregular-shaped formwork. The test results were compared with those by FEM analysis. As a result, the test agrees well with the analysis.

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참고문헌

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