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| Repair and Strengthening Assessment of Existing Bridges Based on Time-Dependent Reliability Analysis | |
| 作者姓名： | 孙晓燕 黄承逵 孙保沭 |
| 作者单位： | [1]CivilEngineeringDepartmet,TsinghuaUniversity,Beijing100084,China [2]StateKeyLaboratoryofCoastalandOffshoreEngineering,DalianUniversityofTechnology,Dalian116023,China [3]DepartmentofHydraulicandHydropowerEngineering,NorthChinaInstituteofWaterConservancyandHydropower,Zhengzhou450008,China |
| 基金项目： | TheLiaoningProviceCommunicationDe partmentKeyScienceFoundation (No .0 10 1) |
| 摘 要： | The strategy on repair and strengthening of existing bridges based on time-dependent reliability was analyzed with the maximum expected benefit as the objective function. A sample of risk-ranking decision was illustrated based on updated inspection information with 35 survival age. The effect of improvement of live loads and difference of repair methods on time-dependent reliability of existing bridges are considered. The results show that the decision method can be used in real project, with the cost of failure consequence and the risk of failure considered. |
| 关 键 词： | 电桥 时变可靠性 风险分析 修理方法 经济成本 |
Repair and Strengthening Assessment of Existing Bridges Based on Time-Dependent Reliability Analysis |
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| Sun Xiaoyan Huang Chengkui Sun Baoshu . Civil Engineering Departmet,Tsinghua University,Beijing ,China . State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian ,China.Repair and Strengthening Assessment of Existing Bridges Based on Time-Dependent Reliability Analysis[J].Journal of Southwest Jiaotong University,2004,12(2):159-164. | |
| Authors: | Sun Xiaoyan Huang Chengkui Sun Baoshu Civil Engineering Departmet Tsinghua University Beijing China State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China |
| Institution: | 1. Civil Engineering Departmet,Tsinghua University,Beijing 100084,China 2. State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China 3. Department of Hydraulic and Hydropower Engineering,North China Institute of Water Conservancy and Hydropower,Zhengzhou,450008,China |
| Abstract: | The strategy on repair and strengthening of existing bridges based on time-dependent reliability was analyzed with the maximum expected benefit as the objective function. A sample of risk-ranking decision was illustrated based on updated inspection information with 35 survival age. The effect of improvement of live loads and difference of repair methods on time-dependent reliability of existing bridges are considered. The results show that the decision method can be used in real project, with the cost of failure consequence and the risk of failure considered. |
| Keywords: | Existing bridge Repairing and strengthening Time-dependent reliability Economical optimization risk-ranking decision |
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