태풍매미에 의한 부산항 컨테이너크레인의 붕괴

Title
태풍매미에 의한 부산항 컨테이너크레인의 붕괴
Alternative Title
Collapse of container cranes at Busan ports under typhoon Maemi
Author(s)
김동현; 오병철; 한상훈; 심재설; 전인식; 송만순; 조지성
Publication Year
2004-05-23
Abstract
Large container cranes are normally designed to resist severe wind. Safety devices such as stowage pins and tie-downs prevent them from being slided or overturned. However, even when the wind speed a little bit exceeds design level, they sometimes undergo total collapse. This may be due to the fact that the total force exerted on the structure increases in proportional to the square of wind speed. But, another important fact is uncovered in this study. Tensions occurring at tie-downs increase much faster than that of main bodies. Therefore, very small amount of excessive wind speed may cause fatal increases of tension at tie-downs. The increasing rate of wind speed and the member force of safety devices were compared in numerical example and it was also proved theoretically. One of the most probable causes of collapsed container cranes at Shingamman port, Busan, was revealed by this phenomenon. In conclusion, it is recommended that safety factor for mooring devices should be larger than that for structural members
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31852
Bibliographic Citation
ISOPE2004, pp.683 - 686, 2004
Publisher
ISOPE
Type
Conference
Language
English
Publisher
ISOPE
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