| 基于过载法的船舶板架冗余度研究 |
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| 引用本文： | 吴剑国,罗海东,洪英,刘俊,师桂杰.基于过载法的船舶板架冗余度研究[J].船舶,2015(6):101-105. |
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| 作者姓名： | 吴剑国 罗海东 洪英 刘俊 师桂杰 |
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| 作者单位： | 1. 浙江工业大学 建筑工程学院 杭州310014;2. 中国船级社 上海规范研究所 上海200135 |
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| 摘 要： | 针对两种损伤模式,建立基于过载法的船舶板架结构冗余度计算模型,推导板架结构连续垮塌的最大屈曲利用因子计算公式。计算了6艘CSR船舶船底、内底板、舷侧板和甲板等板架损伤态的屈曲利用因子,验证船舶板架的冗余度。
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| 关 键 词： | 结构冗余度 屈曲利用因子 扶强材垮塌 |
Research about structural redundancy of grillage stiffener based on over load method |
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| Abstract: | For two damage assumption conditions, the computational model for the structural redundancy of a ship grillage stiffener is developed. A formula for maximum buckling utilization factor is derived, which is applicable for progressive collapse of ship structure grillage stiffener. The calculation results of 6 actual bulk carriers and oil tankers designed by CSR-H show that the actual ships satisfy the evaluation criteria of structural redundancy. |
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| Keywords: | structural redundancy buckling utilization factor stiffener collapse |
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