Overall Transport Technology for the Superstructure of Large Container Ships
In order to shorten the construction period of the shipyard and save core resources such as cranes and assembly sites in the shipyard area,the superstructure of ships is generally constructed by first relocating for construction,and then using the self-propelled modular transporter(SPMT)for overall relocation.In response to the problem of large scale,heavy weight,and high center of gravity of the superstructure of large container ships,which makes it difficult to achieve overall displacement and leads to a shortage of site resources in the dock area,research on the overall displacement process is carried out,and a displacement stability calculation and analysis method is constructed to achieve a safe displacement plan for the superstructure on real ships based on ultra-high center of gravity and ultra-narrow base,supporting the intensive construction of ship superstructure.Taking the superstructure of a 15 000 TEU ship as an example,a mechanical analysis is conducted on the factors affecting the stability of barge transportation.A stability calculation method is constructed to determine the safety factor of barge transportation,providing reference for the overall displacement and barge stability calculation of large ship sections and superstructure in the future.