Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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The Study on the Numerical Analysis of Welding Heat Distribution of Preflex Beam

유한요소법에 의한 PREFLEX BEAM의 용접열분포 특성에 관한 연구

  • Bang, Han-Sur (Department of Naval Architecture and Ocean Engineering, CHO-SUN UNIVERSITY) ;
  • Joo, Sung-Min (Department of Naval Architecture and Ocean Engineering, CHO-SUN UNIVERSITY) ;
  • Kim, Kyu-Hoon (Department of Naval Architecture and Ocean Engineering, CHO-SUN UNIVERSITY) ;
  • Park, Hyun-Hoo (Department of Naval Architecture and Ocean Engineering, CHO-SUN UNIVERSITY) ;
  • Lee, Hyung-Hoon (SAMHYUN P.F Co. Ltd.)
  • 방한서 (조선대학교 선박해양공학과) ;
  • 주성민 (조선대학교 선박해양공학과) ;
  • 김규훈 (조선대학교 선박해양공학과) ;
  • 박현후 (조선대학교 선박해양공학과) ;
  • 이형훈 ((주)삼현 P.F)
  • Published : 2002.10.25
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Abstract

Preflex beam is a method of construction to hold the Pre-compressive stresses over the concrete pier by the Preflexion load. During the fabrication of the girder, welding causes the welding residual stresses. The welding residual stresses must be relieved to generate the accurate compressive pre-stresses that is designed. On this study, to find out the thermal distribution characteristics on the girder by welding, both the three-dimensional finite element analysis and the two-dimensional finite element analysis in a quasi-steady state is carried out. After comparing with each result between the three-dimensional analysis and the two-dimensional analysis, finite element analysis is carried out against the actual girder and analyze welding thermal distribution characteristic over the preflex beam and obtain the input data for the analysis of the welding residual stresses.

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