Analysis of Highway Concrete Beam Bridge Life Cycle Design Method and Application

Although a great deal of special research on the bridge life cycle has been done at home and abroad,the life cycle design system and the corresponding design methods for bridge are still scarce.The concept of life cycle design methods,design principles and design objectives are clarified.The design of the bridge and needs are expanded to the entire life of the structure.The overall framework of the life cycle design of the highway concrete beam bridge is created in this paper.An example is studied based on simply supported reinforced concrete beam bridge engineering.A life cycle design framework and design method for the life cycle design system of bridge are specifically addressed,according to the two methods including the time-variant reliability and cycle cost optimization for the bridge.The theory is applied to actual concrete beam bridge project for engineering practice to provide references and design ideas.