웨브에 개구부를 가진 구조부재의 선형좌굴해석

다국어 초록 (Multilingual Abstract)

The linear buckling analysis of steel members with web openings is carried out by using a continuum shell finite element having six degrees of freedom. In the analysis, the parameters such as the size, shape and existence of web openings are mainly introduced to see the change of buckling loads and mode shapes of steel members due to the degradation of structural stiffness. The full analysis procedure used in the present study is explicitly described. The subspace iteration is employed in eigenvalue analysis. In particular, for the eigenvalue analysis, the geometric stiffness matrix is formulated by using the stress distributions produced by using linear static analysis with design load. From numerical tests, it is found to be that buckling load and its mode shape of steel members are very sensitive to the existence, size and shape of web opening especially in higher modes. The present numerical results can be used as imperfection data for nonlinear buckling analysis.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 구조부재에 도입된 개구부의 주요요소
• 3. 선형좌굴 유한요소해석 절차
• 4. 유한요소 해석모델 형성
• 5. 수치 예제
• 6. 결론
• REFERENCES

참고문헌 (Reference)

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