These days, the weight lightening is issued for cost decrease and safety of offshore. Helideck, the most important structure of offshore-plant topside, is considered important to weight lightening of topside. Previously, helideck is made by steel mate...
These days, the weight lightening is issued for cost decrease and safety of offshore. Helideck, the most important structure of offshore-plant topside, is considered important to weight lightening of topside. Previously, helideck is made by steel material but nowadays the aluminum is being used for manufacturing helideck. Although the material is changed, the software for structural analysis does not exist. Moreover, there is little experience about structural analysis. So, the Helideck has trouble in structural evaluation. In this paper, the structural analysis is performed for aluminum helideck. The study is carried out about the structural evaluation applying the variable loads based on regulation and using structural analysis program and own-development software.