半潜式起重铺管船总强度直接计算研究

摘要

半潜式起重铺管船由上平台中若干立柱和横撑以及两个下浮体组成。工作和运营时的结构受力十分复杂，文中采用直接计算方法，对各种典型工况进行有限元计算，对半潜式起重铺管船总强度载荷模式，主要载荷传递路径和结构设计关键区域进行分析和论述。%A semi-submersible crane/pipe-laying vessel consists of upper hull, several columns, braces and two low attached hulls. Its structural stress is very much complicated under working and sailing conditions. With a direct calculation method, this paper carries out the analyses and discussions of the load mode of global strength, transfer path of main loads and key area for the structural design of the semi-submersible crane/pipe-laying vessel under the various typical working conditions by FEM.