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.

• 황경주(정회원, 서울시립대학교 건축학부 조교수, 공학박사) | Hwang, Kyung-Ju 주저자
• 이승재(정회원, 한국기술교육대학교 건축공학부 교수, 공학박사) | Lee, Seung-Jae
• 손수덕(한국기술교육대학교 건축공학부 연구교수, 공학박사) | Shon, Su-Deok 교신저자