| Application of dynamic programming to structural repairing strategies |
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| 作者姓名： | 陈朝晖 LIU Xila |
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| 作者单位： | [1]CollegeofCivilEngineering,ChongqingUniversity,Chongqing400045,P.R.China [2]CivilEngineeringDepartmentofTsinghuaUniversity,Beijing100084,P.R.China |
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| 基金项目： | Funded by the National Key Project on Basic Research and Applied Research (85-40). |
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| 摘 要： | A model of dynamic programming for repairing strategies of concrete structures during a projected service period is proposed,which takes into account the degradation in strength of components and the probability of accidental load.This model takes the safety grade of a structural system as the state variable of repairing strategies,and incorporates economic factors including expected repair cost,property loss due to structure failure,goods and material loss due to structure failure,loss of production interrupt due to structure failure,and inspection cost in decision making.It is found that the optimal repairing strategies are sensitive to the probability of accidental loads as well as the failure costs.The practicality of the model is demonstrated by an example.
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| 关 键 词： | 建筑结构 结构可靠性 建筑物维修 维修策略 安全等级 动态规划 |
Application of dynamic programming to structural repairing strategies |
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| CHEN Zhaohui,LIU Xila College of Civil Engineering,Chongqing University,Chongqing,P.R. China Civil Engineering.Application of dynamic programming to structural repairing strategies[J].Journal of Chongqing University,2002,1(2):34-37. |
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| Authors: | CHEN Zhaohui LIU Xila College of Civil Engineering Chongqing University Chongqing PR China Civil Engineering |
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| Institution: | CHEN Zhaohui1,LIU Xila2 1College of Civil Engineering,Chongqing University,Chongqing 400045,P.R. China 2Civil Engineering Department of Tsinghua University,Beijing 100084,P.R. China |
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| Abstract: | A model of dynamic programming for repairing strategies of concrete structures during a projected service period is proposed, which takes into account the degradation in strength of components and the probability of accidental load. This model takes the safety grade of a structural system as the state variable of repairing strategies, and incorporates economic factors including expected repair cost, property loss due to structure failure, goods and material loss due to structure failure, loss of production interrupt due to structure failure, and inspection cost in decision making. It is found that the optimal repairing strategies are sensitive to the probability of accidental loads as well as the failure costs. The practicality of the model is demonstrated by an example. |
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| Keywords: | structural reliability safety classification repairing strategies |
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