【摘要】 为了提高桥梁的安全性,降低成本,以桥梁工程、交通工程为基础,从经济学原理出发对公铁立交桥的病害进行分析,用运寿命周期成本(LCC)方法,综合考虑桥梁的最初投资费用、养护维修、运营等费用,系统地开展公铁立交桥改造方法的研究,提出符合实际情况的改造方案,从实效方面构造经济分析模型进行了验证。为桥梁改造提出了一种新的思路。更多还原

【Abstract】 In order to improve the safety of bridge and reduce costs,this paper is based on bridge engineering and traffic engineering.As a starting point to the principles of economics,the disease of the highway-railway separation bridge is analyzed by using Life-Cycle Cost Analysis.Considering the initial investment costs,maintenance costs,and operation costs of the bridge,it systematically researches the improvement method of the highway-railway separation bridge based on economy.Bridge strengthening scheme which fits to practical situation is proposed.From the effectual aspects,bridge reforming scheme was verified by building an economic analysis model.It explores a new idea for bridge reforming method.更多还原