Research on the Integrated Design Method of Construction and Maintenance in the Whole Life Cycle of Expressway

Aiming at the drawbacks of “emphasizing construction and ignoring operation” in the current engineering construction mode, the author studies the influencing factors and design methods of the integrated design of construction, management and maintenance of expressway bridges in the whole life cycle. According to the cost function curve of the whole life cycle, the method of optimizing the life cycle cost analysis is given. The integrated design of construction, management and maintenance throughout the life cycle can ensure the stability and continuity of the construction, management and maintenance of transportation facilities, realize the seamless connection of its construction, management and maintenance, and realize the continuity and traceability of engineering responsibilities. Reference is provided throughout the life cycle.