Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI), a unit of Nippon Steel & Sumitomo Metal Corp. of Tokyo, Japan, participated in the 15-company joint venture (JV) that designed and built Tokyo International Airport’s new D Runway. Located in the Bay of Tokyo, the USD 6 billion offshore runway is comprised of a 1,100-meter pier section and a 2,020-meter reclaimed section. NSENGI completed detailed design of the jacket-supported pier structure in just 18 months. This is the first application of a jacket structure for an offshore airport runway, and it could not have been designed in this timeframe without the use of Bentley’s SACS software to perform fatigue analysis of the structure under the most severe of conditions. The pier’s 100-year service life is 70-80 years longer than the standard for offshore structures. Expanding
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