ALUMINIUM HELIDECK DESIGN FOR EUROCODE9 WITH DEFORMATION BASED DESIGN

摘要

Aluminium alloys are gaining increasing usage in the construction industry, offering high strength-to-weight ratios, good durability and ease of fabrication. The aluminium helideck structure should satisfy requirements in accordance with some offshore regulations and rule notations such as the Australian/New Zealand Standard and EUROCODE 9. The width-tothickness ratio and the yield stress are recognized as the governing design parameters in the design of cross sections in these specifications. The aluminium helideck structures are composed of several structural units such as aluminium part and steel part. The aluminium part is composed of pancake, girder, safety net, and so on.rnIn the present paper, the aluminium helideck design with relevant EUROCODE 9 is done based on the strength calculation. It could be possible to reduce calculation time and thus provide reasonable solution in view of practical design. Static and nonlinear collapse behaviour of developed structure is investigated in this study.rnThe main purposes are to provide a reasonable solution that can improve the product quality by checking both strength and deformation criteria. The effect of deflection during the fabrication stage is considered in the structural design based on newly proposed EUROCODE 9. Lastly a comparison between the present results and the results by FE-Analysis is presented.