Technical and Economic Analysis of the Life Cycle of Huangmaohai Cross-sea Bridge

Huangmaohai Cross-sea Bridge has a total length of about 31 kilometers and adopts two-way six-lane design standards. There are 2 super large cable-stayed bridges, one of which is the Huangmaohai Bridge. It has a span of 720 meters, and after completion it will become the world’s largest span three-tower cable-stayed bridge. Choosing the best plan in the project decision-making stage of large-scale cross-sea passage projects and other public construction products, eliminating blindness in plan selection, and optimizing the life cycle costs of the project can save a lot of manpower, material and financial resources for the country and society. According to the relevant concepts and classifications of the life-cycle cost of the project at home and abroad, this paper divides the life-cycle cost of China’s highways into three types of costs: construction period cost, operation period cost and disposal cost, and carries out economic analysis in combination with main technical solutions. The analysis results strongly support the design scheme comparison and selection of the Huangmaohai Cross-sea Bridge.

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