2500吨级半舱甲板货船中剖面设计

The design of midship section for 2500r well-deck cargo ship

本文通过对2500吨级半舱甲板货船四种中剖面结构形式的总纵强度进行计算比较分析，得出较优的中剖面形式是：采用下甲板与内舷板相连接在下甲板平面，内舷板下设甲板纵桁及支柱，其中剖面截面积较其他形式减少2．7％-3．6％，重量可降低，是值得进一步研究的半舱甲板货船船型结构方式，可供设计参考。

The paper analyses the longitudinal strength of 4 structure types for 2500t well-deck deck cargo ship,and finds the better midship section type ,which is to connect lower deck and inner wale on the lower deck surface ,to install underdeck girders and pillars on inner wale.The midship section area of this type is less 2.7%-3.6%than areas of the other types, and ship weight of this type is less than the others.So the type of well-deck deck cargo ship is worth to study more deeply and to be consulted.