Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Study on Buckling Analysis of Portable Prestressing Device for Pretensioning PSC girders

프리텐션 방식의 PSC 거더 이동식 제작장치의 좌굴해석 연구

  • Received : 2011.11.25
  • Accepted : 2012.01.05
  • Published : 2012.01.31
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Abstract

This study is a research on the buckling analysis of a portable prestressing device using finite element analysis program, ABAQUS. In order to produce 50m-span PSC girders using pretensioning method, a portable prestressing device has to endure a large jacking force about 10MN. Therefore it shall be safe and stable about the jacking force. In this study, the buckling analysis technique is developed and the buckling analysis of a portable prestressing device is performed using previous studies about the analytical model that the validity of the analytical model was demonstrated by comparing analytical results with experimental results. The stability of the device to produce 10m span PSC girders is investigated.

본 연구는 유한요소해석프로그램(ABAQUS)을 사용하여 이동식 긴장대의 좌굴해석 기법을 연구한 것이다. 50m에 달하는 프리텐션 방식의 PSC 부재를 제작하기 위해서는 약 10MN에 이르는 매우 큰 긴장력이 가해져 이동식 긴장대가 PSC 부재의 양생 전까지 이 긴장력을 저항하여야 한다. 따라서 이동식 긴장대는 하중에 대한 안전성과 좌굴에 대한 안정성을 확보하여야 한다. 이에 본 논문에서는 앞서 개발한 이동식 긴장대의 해석모델을 이용하여 좌굴해석 기법에 대해 연구하여 이동식 긴장대가 좌굴에 대한 안정성 확보 여부를 파악하고자 하였다.

Keywords

References

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