A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory
The increase in traffic volume and train load poses new challenges to the reliability assessment of existing railway bridges. To construct a comprehensive assessment method for the safety and reliability of existing railway bridges, firstly, the risk factors of railway bridge structures are analyzed...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/3032658 |
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| _version_ | 1850164654707310592 |
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| author | Zhonglong Li Xiaowei Chen Haonan Bing Yangjun Zhao Zhifeng Ye |
| author_facet | Zhonglong Li Xiaowei Chen Haonan Bing Yangjun Zhao Zhifeng Ye |
| author_sort | Zhonglong Li |
| collection | DOAJ |
| description | The increase in traffic volume and train load poses new challenges to the reliability assessment of existing railway bridges. To construct a comprehensive assessment method for the safety and reliability of existing railway bridges, firstly, the risk factors of railway bridge structures are analyzed and the evaluation criteria are determined; secondly, based on the accident tree theory, a multilevel Bayesian network model with key points is established, and the ability of the Bayesian network bidirectional reasoning and sensitivity analysis is used to evaluate the structural safety; finally, the result was applied to the marina northern Songhua River extra-large bridge to verify the applicability of the comprehensive evaluation of the reliability of an existing railway bridge. This approach provides a theoretical basis for the maintenance and reinforcement of the Songhua River Bridge along the Bin-North Line. |
| format | Article |
| id | doaj-art-e8d8080e6eb64b078e7133f8daa42020 |
| institution | OA Journals |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-e8d8080e6eb64b078e7133f8daa420202025-08-20T02:21:57ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/3032658A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian TheoryZhonglong Li0Xiaowei Chen1Haonan Bing2Yangjun Zhao3Zhifeng Ye4School of Transportation Science and EngineeringSchool of Transportation Science and EngineeringSchool of Transportation Science and EngineeringHenan Provincial Communications Planning & Design Institute Co, LtdHeilongjiang Highway Development (Center)The increase in traffic volume and train load poses new challenges to the reliability assessment of existing railway bridges. To construct a comprehensive assessment method for the safety and reliability of existing railway bridges, firstly, the risk factors of railway bridge structures are analyzed and the evaluation criteria are determined; secondly, based on the accident tree theory, a multilevel Bayesian network model with key points is established, and the ability of the Bayesian network bidirectional reasoning and sensitivity analysis is used to evaluate the structural safety; finally, the result was applied to the marina northern Songhua River extra-large bridge to verify the applicability of the comprehensive evaluation of the reliability of an existing railway bridge. This approach provides a theoretical basis for the maintenance and reinforcement of the Songhua River Bridge along the Bin-North Line.http://dx.doi.org/10.1155/2022/3032658 |
| spellingShingle | Zhonglong Li Xiaowei Chen Haonan Bing Yangjun Zhao Zhifeng Ye A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory Advances in Civil Engineering |
| title | A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory |
| title_full | A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory |
| title_fullStr | A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory |
| title_full_unstemmed | A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory |
| title_short | A Comprehensive Reliability Assessment Method for Existing Railway Bridges Based on Bayesian Theory |
| title_sort | comprehensive reliability assessment method for existing railway bridges based on bayesian theory |
| url | http://dx.doi.org/10.1155/2022/3032658 |
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