한국해양공학회:학술대회논문집 (Proceedings of the Korea Committee for Ocean Resources and Engineering Conference)
- 한국해양공학회 2002년도 춘계학술대회 논문집
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- Pages.145-150
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- 2002
내부 환보강 T형 관이음부의 정적강도
Static Strength of Ring-stiffened Tubular T-joints
- Cho, Hyun-Man (Dept. of Ocean Engineering, Pukyong National University) ;
- Ryu, Yeon-Sun (Dept. of Ocean Engineering, Pukyong National University)
- 발행 : 2002.05.17
초록
Tubular joints having a large diameter in the offshore structure are reinforced using internal ring stiffener in order to increase the load carrying capacity. In this study, the static strengths of internally ring-stiffened tubular T-joints subjected to compressive brace loading are assessed. Nonlinear finite element analyses are used to compute the behavior of unstiffened and ring-stiffened T-joints. From the numerical results, internal ring stiffener is found to efficient in improving the ultimate capacity, and reinforcement effect are calculated. The influence of geometric parameters for members and ring is evaluated. Based on the FE results, regression analysis is performed considering practical sizes of ring stiffener, finally strength estimation formulae for ring-stiffened T-joints are proposed.
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