Life Cycle Cost Analysis for Bridge on Active Duty in Operator

摘要

Our project cost control is mostly concentrated in the construction phase cost control, tends to ignore the costs of the operational phase control. For the maintenance and repair of the existing bridge structure, this paper proposed the concept of life-cycle cost, had a detailed analysis of the composition of the life cycle cost. Based on the discount rate, and used the application of engineering principles of economics, proposed optimization mathematical model of the life cycle cost, and gave the life-cycle cost analysis for bridge maintenance program with examples, verified the validity of the model and the implementation of the need for life-cycle cost analysis, and it had practical significance for bridge maintenance phase of cost control.