既有桥梁改造方案经济分析模型的构建

在确定既有桥梁各种改造方案的基础上,从工程经济的原理出发,在桥梁全寿命期内,考虑所有可能发生的费用,建立桥梁的全寿命周期费用模型(平均年费用模型),并且对加固、重建方案的平均年费用进行相互比较、分析。同时还基于平均年费用的分析模式,对桥梁的经济使用寿命进行了预测。

The Building of Economic Analysis Model for Reconstruction Plan of the Existing Bridges

After determination of the construction plan of the existing bridges,a life cycle cost model(average annual cost model) is built on the basis of engineering economic principle,and considering all the cost that might be raised in the life cycle of bridges,and meanwhile,the average annual cost of reinforcement and reconstruction plans are compared and analyzed.The economic usage life of bridges is predicted based on the average cost analysis model.