The Buckling Analysis of Stiffened Opening Plastes with Two Opposite Elastic Supports and Two Other Opposite Simply Supports Subjected to In-Plane Pure Bending

면내휨을 받는 2변단순지지 2변 탄성지지 유공 보강판의 좌굴해석

  • 김일중 (원광대학교 대학원 건축공학과) ;
  • 정동조 (전주대학교 건축공학과) ;
  • 이용수 (원광대학교 건축공학과)
  • Published : 1995.12.01


When hot-rolled wide flanges are used as vertical compressive or bending member, opening web are often to take a space for equipments of pipe or duct. The Web of hot-rolled wide flange steel with opening may be analyzed as a rectangular plate, subjected to in plane force, and the buckling load is governed by the ultimate force of web. The result of the theory showed close agreement with the result of the finite element analysis. It was also shown that the buckling loads of stiffened opening plates could be larger than those of the plate. The stiffened opening plates for the 4-side simply supported case showed more stiffening effect than the Two Opposite Elastic Supports and Two Other Opposite Simply Supports case. In this study, we proposed the effective opening sizes that buckling loads of stiffened opening plate could be greater than those of the plates.



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