Net Present Value NPV Bridge Life Cycle Cost Analysis BLCCA 3 1 Fig. 1 1 Composition of bridge life cycle cost

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1 Journal of Highway and Transportation Research and Development Vol. 30 No. 9 Sep doi /j. issn 科学合理地预测分析桥梁全寿命周期成本, 是桥梁建设投资决策和桥梁方案比选的关键问题之一悬索桥因其构件多, 养护要求高, 全寿命成本预测难度大在桥梁全寿命周期成本分析方法的基础上, 重点针对悬索桥的构件分类管养需要全寿命周期成本构成及计算方法进行研究, 并以广东虎门二桥坭洲水道桥主桥为例, 阐述悬索桥全寿命周期成本分析与预测的方法与过程, 为同类桥梁全寿命周期成本分析计算提供参考通过分析预测, 悬索桥建设成本占整个寿命周期成本不足 50%, 因此仅按建设成本进行特大桥方案比选是不全面不科学的, 需要采用全寿命周期成本理念分析方案的优劣桥梁工程 ; 悬索桥 ; 方案比选 ; 全寿命周期成本 ; 预测分析 U F A Analysis and Evaluation of Life Cycle Cost of Suspension Bridge YU Xing-huan CCCC Highway Consultants Co. Ltd. Beijing China Abstract A scientific prediction and analysis of bridge life cycle cost is one of the most important aspects in scheme comparison and decision-making on investment of bridge construction. Because suspension bridge has multiple components and requires high level of maintenance its life-cycle cost is hard to predict. Based on the method of bridge life-cycle cost analysis the research is focused on the classification of key components in suspension bridges the demand for maintenance and the composition and calculation method of life cycle cost. Taking the nizhou waterway main bridge of the second Humen bridge in Guangdong for example the life-cycle cost analysis and prediction method and the process of suspension bridge is expounded to provide a reference for similar bridges. Through the prediction and analysis the construction cost of suspension bridge is 50% less than the bridge life cycle cost. So it is neither comprehensive nor scientific to select bridge scheme by simply relying on the construction cost. It is a better alternative to select scheme by bridge life cycle cost. Key words bridge engineering suspension bridge scheme comparison life cycle cost evaluation and analysis yxh190826@ sina. com

2 Net Present Value NPV Bridge Life Cycle Cost Analysis BLCCA 3 1 Fig. 1 1 Composition of bridge life cycle cost

3 Fig. 2 Component classification of suspension bridge Tab. 1 Maintenance demand and cost composition of main components of suspension bridges 3 t n C n t 0 I C 0 = C n 1 + I t n -t 0 C LCC = C J + C Y + C D 2 LCC C J C Y C D m m m a

4 /a 4 a % Tab. 3 Management cost for Nizhou waterway bridge a 4% 2 Tab. 2 2 Construction cost for Nizhou waterway bridge / /% / / /a 4 4 Tab. 4 Maintenance cost for Nizhou waterway bridge / 10 4 a % 40% / 10 4 a / 10 4 a / 10 4 a / 10 4 a / 10 4 a /% 4 / /% 4 3 / a 20% 18

5 a / Tab. 5 Special inspection costs for main components of / Nizhou waterway bridge 15 a / / / / / 50a / a 10 4 /% / / 3% ~ 10% % 100 a Tab. 6 6 Repair cost for main components of Nizhou waterway bridge / / / / / a /% a /% / Tab. 7 7 User cost of Nizhou waterway bridge during operation /% / Tab. 8 8 Environmental cost of Nizhou waterway bridge during operation /% /

6 Tab. 9 Discount cost of recycle of irreplaceable steel components of Nizhou waterway bridge 4. 5 / / 10 4 /a /% a % % Tab Discount cost of recycle of replaceable steel components of Nizhou waterway bridge / / /% 10 4 /a / 10 4 / 10 4 a - 1 / / Tab. 11 Life-cycle cost of Nizhou waterway bridge / / /% 75% %

7 MENG Fan-chao CHEN Ai-rong XU Guo-ping et al % % Research Report on Theory and Method of Bridge Life Cycle Design R. Beijing CCCC Highway Consultants % 0. 21% Co. Ltd J GUO Yin HUANG Wei ZHUO Wei-dong. Review of Research of Bridge Design Based on Life Cycle Cost 50% % Analysis J. Journal of Highway and Transportation Research and Development J SHAO Xu-dong PENG Jian-xin YAN Ban-fu. References Framework Research on Design Method for Bridge Life Cycle J. Highway J M HU Jiang-bi LIU Yan GAO Ling-ling. Analysis of MENG Fan-chao XU Guo-ping LIU Gao et al. Design Method and Engineering Application of Life Cycle of Bridge Engineering M. Beijing China Communications Press Discount Rate of Bridge Life-cycle Cost J. Highway R WU Ming-yuan GAO Heng MEI Gang et al. Feasibility J XU Guo-ping LIU Ming-hu GEN Shuang. Whole Life Design Method of Bridge Engineering J. Highway Research Report on Second Humen Bridge in Guangdong R. Beijing CCCC Highway Consultants Co. Ltd JTG B S. REN Bi-nian. Corrosion and Maintenance of Highway Steel JTG B Estimation and Budget Compilation Bridge M. Beijing China Communications Press Method of Highway Capital Construction Project S J J WU Hai-jun CHEN Ai-rong. Application of Life Cycle MA Jun-hai CHEN Ai-rong HE Jun. General framework Cost Analysis Method to Bridge Engineering J. for bridge life cycle design J. Journal of Tongji Highway University Natural Science GAO Ling-ling. Bridge Life Cycle Cost Analysis D. J Beijing Beijing University of Technology MA Jun-hai YU Jun-ling. Application of Life Cycle Cost Analysis in Bridge Design J. Highway M. 13. D M CHEN Ai-rong. Design Processes of Bridges Based on 6. Given Structural Life M. Beijing China Communications R. Press 2009.

2007 2007 2007 CHINA SCIENCE AND TECHNOLOGY DEVELOPMENT REPORT 2007 192

2007 CHINA SCIENCE AND TECHNOLOGY DEVELOPMENT REPORT 191 2007 2007 2007 CHINA SCIENCE AND TECHNOLOGY DEVELOPMENT REPORT 2007 192 2007 CHINA SCIENCE AND TECHNOLOGY DEVELOPMENT REPORT 2007 1 17 8 2007 2007