上层建筑一体化船型的船体梁总纵强度计算方法研究

Research on a calculation method of the hull girder strength with long integral superstructure

目前许多船型进行上层建筑一体化结构设计,把上层建筑和主船体连成一体,舷侧线型从主船体一直延伸到上层建筑甲板。在按现有规范进行船体梁总强度校核时,会遇到如何计算包含上层建筑的船体梁剖面模数和总强度应力等问题。文章引入了上层建筑面积折减系数和上层建筑有效度系数,建立了它们之间的数值关系,给出了上层建筑一体化船型的上层建筑船体梁横剖面参数和参与总强度有效度的工程计算方法,可应用于该类船型的设计计算和船体梁总强度校核。

Currently many ship structural designs carry on the superstructure integral.At carrying on a girder strength verify according to the existing rules,it will meet how to calculate the hull girder section mold and stresses which include the superstructure effect, etc.. This paper led to go into the superstructure area discount coefficient and superstructure efficient coefficient, established their number relation, gave the engineering calculation method of the hull girder about the type of superstructure integral which jointed the hull superstructure section parameter and participated in total strength efficient coefficient.This method can be applied in this ship type design calculation and hull girder strength verify.