基于过载法的船舶板架冗余度研究  

Research about structural redundancy of grillage stiffener based on over load method

作　　者：吴剑国[1] 罗海东[2] 洪英[2] 刘俊[1] 师桂杰[2] 

机构地区：[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

出　　处：《船舶》2015年第6期101-105,共5页Ship & Boat

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。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.

关 键 词：结构冗余度 屈曲利用因子 扶强材垮塌 

分 类 号：U661.4[交通运输工程—船舶及航道工程]