| 劣化桥梁概率维护模型和维护方案成本优化研究 |
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| 引用本文： | 彭建新,张建仁,王磊.劣化桥梁概率维护模型和维护方案成本优化研究[J].铁道科学与工程学报,2010,7(6). |
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| 作者姓名： | 彭建新 张建仁 王磊 |
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| 作者单位： | 长沙理工大学,省部共建(桥梁安全控制)教育部重点实验室,湖南,长沙,410114;长沙理工大学,省部共建(桥梁安全控制)教育部重点实验室,湖南,长沙,410114;长沙理工大学,省部共建(桥梁安全控制)教育部重点实验室,湖南,长沙,410114 |
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| 基金项目： | 国家自然科学基金资助项目(51008037); 湖南省科技计划一般项目(2010FJ3172) |
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| 摘 要： | 建立了劣化桥梁服役期耐久性概率评估模型,根据预定义的概率维护模型,推导了桥梁结构在预防性维护策略和基于性能控制维护策略作用的可靠指标和状态指标的时变规律,结合现有的维护技术,分别计算了在单一维护技术和组合维护技术下劣化桥梁的时变可靠指标与状态指标和年度维护成本和累计维护成本。研究发现,维护成本花费越高,桥梁性能指标越高;桥梁的初始性能越好,则后期维护成本越低。将预防性的定期维护和基于性能的维护方法组合的维护技术比单一的维护技术更合理,能维持结构性能的前提下有效的控制维护成本。
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| 关 键 词： | 劣化桥梁 耐久性 性能指标 维护 成本 |
Probabilistic maintenance models and maintenance costs optimization for deteriorating bridges |
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| PENG Jian-xin
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ZHANG Jian-ren
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WANG Lei.Probabilistic maintenance models and maintenance costs optimization for deteriorating bridges[J].Journal of Railway Science and Engineering,2010,7(6). |
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| Authors: | PENG Jian-xin ZHANG Jian-ren WANG Lei |
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| Institution: | PENG Jian-xin,ZHANG Jian-ren,WANG Lei(Key Lab of Department of Education , Hunan Province(Bridge Safety Control),Changsha University of Science , Technology,Changsha 410114,China) |
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| Abstract: | Probabilistic performance model was developed to define durability of deteriorating bridges in service time.Based on predefined probabilistic maintenance model,the present paper derived a series of equations for reliability index profiles and condition index profiles with preventive and performance-controlled maintenance actions.Combined with maintenance technologies,the profiles of reliability index,condition index and annual and cumulative maintenance cost are computed.It was found that the higher mainten... |
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| Keywords: | deterioration durability performance index maintenance interventions cost |
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