|
|||||
|
|
| 基于动态可靠度的在役桥梁维修决策经济优化分析 | |
| 引用本文： | 孙晓燕,黄承逵,孙保沭.基于动态可靠度的在役桥梁维修决策经济优化分析[J].上海大学学报(英文版),2005,9(4):292-297. |
| 作者姓名： | 孙晓燕 黄承逵 孙保沭 |
| 作者单位： | [1]School of Civil Engineering, Tsinghua University, Bering 100084, P.R. China [2]State Key Laboratory of Coastal and Offshore Engineering, Dalian UniversiSy of Technology, Dalian 116023, P.R. China [3]North China Institute of Water Conservancy and Hydropower , Zhengzhou 450008, P . R . China |
| 基金项目： | Project supported by the Key Science Foundation of Communica- tion Department of Liaoning Province（Grant No.0101） |
| 摘 要： | The lifeti me maintenance of a bridge can comprise amuch greater portion of the total lifeti me cost than theoriginal cost of construction because of deterioration.An opti mal maintenance programis the key to makingappropriate decisions to mini mize cost and maintain anappropriate level of safety.Life-cycle cost is a usefulconcept in reducing the overall cost and achieving anappropriate maintenance plan1,2].It is difficult tomake a reliable esti mate of thelifeti me costs whenthefuture of the… |
| 关 键 词： | 最大预期值 风险控制 可靠性 经济优化 |
| 文章编号： | 1007-6417（2005）04-0292-06 |
| 收稿时间： | 2003-11-07 |
| 修稿时间： | 2004-04-16 |
Maximum expected benefit-oriented optimal maintenance decision for existing bridges |
|
| Sun?Xiao-yan,Huang?Cheng-kui,Sun?Bao-shu.Maximum expected benefit-oriented optimal maintenance decision for existing bridges[J].Journal of Shanghai University(English Edition),2005,9(4):292-297. | |
| Authors: | Sun Xiao-yan Huang Cheng-kui Sun Bao-shu |
| Institution: | 1. School of Civil Engineering, Tsinghua University, Beijing 100084, P.R. Chna;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, P.R. China 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, P.R. China 3. North China Institute of Water Conservancy and Hydropower,Zhengzhou 450008, P.R. China |
| Abstract: | Abstract An optimal maintenance program is the key to making appropriate decisions to minimize cost and maintain an appropriate lev- el of safety. In this paper, the strategy on repairing and strengthening of existing bridges based on time-dependent reliability was analyzed with the maximum expected benefit as the objective function. Risk ranking and lifecycle cost analysis were considered in the reliability-based bridge assessment. A practical application of risk-ranking decision was illustrated herein based on updated inspection informarion with the bridge at survival age 35. The effects of improvement of live load and difference of repair methods on time-dependent reliability of existing bridges were studied. The decision method can be used in real projects, with the cost of failure consequence and the risk of failure considered. |
| Keywords: | existing bridge repairing and strengthening time-dependent reliability economical optimization risk-raaking decision |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |