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Buckling Load of Single-layered Lattice Roof Structure Considering Asymmetric Snow Load

비대칭 적설하중 적용을 통한 단층 래티스 지붕 구조물의 좌굴하중 특성

  • 황경주 (서울시립대학교 건축학부) ;
  • 이승재 (한국기술교육대학교 건축공학부) ;
  • 손수덕 (한국기술교육대학교 건축공학부)
  • Received : 2015.08.21
  • Accepted : 2015.09.05
  • Published : 2015.09.15

Abstract

A single-layerd steel lattice roof, which has 50m span, was constructed. In order to figure out the realistic buckling load level, the structural analysis of this roof structure was performed especially by local snow load. Due to the characteristics of application of snow load, the load combinations of snow should be considered not only global area but also local part so that the critical buckling load could be observed as easy as possible. Geometrical imperfection was simulated to consider inaccurate shape of structure. And then nonlinear analysis were performed. Finally, this paper could investigate that the local snow load with geometrical imperfection decreased the level of buckling load significantly.

Keywords

Single-layered;Local snow laod;Lattice structure;Geometrical imperfection

Acknowledgement

Supported by : 국토해양부

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