| 반강접 접합부를 적용한 초대형 부유식 구조물 상부구조체에 대한 동적해석 |
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송화철, 김우년 |
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| Dynamic Analysis of Superstructures on Very Large Floating Structure with Semi-Rigid Connections |
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Hwa-Cheol Song, Woo-Nyon Kim |
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| Abstract |
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The additional moment occurs because the superstructures of VLFS are influenced by wave loads instead of earthquake loads. In order to reduce the additional moment, this study used the semi-rigid connections which lie between fully rigid and pinned. If the semi-rigid connections are used for superstructures of VLFS, the moment of beams can be reduced and more economical construction will be possible.
This study aims to show the effect of wave loads on structure and the efficiency of the semi-rigid connections due to wave loads by analyzing the time history responses. The dynamic behaviors of the rigid frame are compared with those of the semi-rigid frame considering of static loads, wave loads and combination loads for a four-bay, three-story frames. The semi-rigid connection type is a steel tubular column with square external-diaphragm connections and the time history analysis is used for the dynamic responses. The additional moment responses due to wave loads increase 33% in the rigid frame, 26% in the semi-rigid frame with the spring model. |
| Key Words:
Wave loads;Semi-rigid connection;Steel tubular column with square external-diaphragm;Time history analysis |
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