Sanya New Airport Benefits from Innovative Structural Analysis for 290 Steel Cylinders Used

Bangalore, March 13, 2018: Hainan Airlines Group Hilong contracted Petroleum Marine Engineering Services (Shanghai) Co., Ltd. (Hilong) to provide engineering design and analysis for 290 steel cylinders, the safe transportation of the cylinders, and the subgrid of an annex as part of a new artificial island in Sanya, China. The transport route went from Nantong, Jiangsu to Sanya, Hainan, ranging approximately 1,285 nautical miles. Sanya Airport is designed to manage an annual throughput of around 60 million people.

Bentleysoftware allowed Hilong to complete optioneering and engineering analysis forthe largest diameter steel cylinder cofferdam in the world. The project teamused SACS for the strength and stability analysis of the large, thin-walledcylinders measuring 30 meters in diameter and between 25 to 39 meters inheight. The project required a 9-kilometer-long structure revetment to beanalyzed in the shipyard, before being transported to the site. The team alsoused SACS to analyze drag and check the strength and the stability of thefixing pieces, the sub-grid, and the hull deck. Additionally, it used MOSES toanalyze buoyancy, stability, longitudinal strength, and motion of the barge onthe critical waypoints of the Taiwan Straits. Additional floating motion andanchorage analysis provided further confidence as the elements were transportedto the site. During the implementation phase of the project, Hilong provided the owner withdetailed manufacturing and construction drawings to guide the actual operation,including delivery orders, memorandums, and the steel cylinder transport designbook required to fully understand the analysis. For this CNY 95.2 billion project, Hilong conducted the calculations andanalysis of the floating hydrodynamic and ocean engineering structures, whichgreatly reduced the time for the engineering calculations the owner required.SACS’ built-in input interface for environmental parameters, such as wind,current, and wave and ship motion data, allowed for calculation of thepotential force on the structure and ensured the cylinders could withstand avariety of elements.“The marine engineering software of MOSES and SACS provided by Bentley provideda great help for the transportation design of the steel cylinder cofferdam ofthe south bank of the artificial island in Sanya New Airport by itstechnological advantages in the industry.”Mingchao Wang, Marine Engineering Structural Engineer, Hilong Petroleum MarineEngineering Services (Shanghai) Co., Ltd. 

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