Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory
Various random factors in the bridge construction process directly affect the safety of the bridge life cycle. The existing theories on the reliability of bridge structure mainly focus on the reliability of components and the reliability of the bridge structure system in the completion and operation...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/16/8137 |
| _version_ | 1827618216677998592 |
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| author | Qingfu Li Tianjing Zhang |
| author_facet | Qingfu Li Tianjing Zhang |
| author_sort | Qingfu Li |
| collection | DOAJ |
| description | Various random factors in the bridge construction process directly affect the safety of the bridge life cycle. The existing theories on the reliability of bridge structure mainly focus on the reliability of components and the reliability of the bridge structure system in the completion and operation stages, while the research on the reliability of the structure system in the construction stage is relatively lacking. Therefore, this paper proposed using the Copula function to calculate the reliability index of the bridge structure construction process system. The basic theory of the Copula function was introduced in detail, and the formula was improved according to the actual situation of bridge construction. Finally, the sensitivity analysis of bridge system reliability was carried out. The research results showed that the method proposed in this paper based on Copula theory to calculate the reliability index of the bridge structure construction process system has strong applicability, simple calculation, and can be used in conjunction with the “interval estimation method”, which is suitable for large and complex bridge structural engineering. At the same time, the conclusion that the influence of failure mode correlation on structural reliability should not be ignored in the actual engineering construction process is confirmed. |
| first_indexed | 2024-03-09T10:02:33Z |
| format | Article |
| id | doaj.art-7993f1a24f19474988e3ee4df3e8b734 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T10:02:33Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7993f1a24f19474988e3ee4df3e8b7342023-12-01T23:21:24ZengMDPI AGApplied Sciences2076-34172022-08-011216813710.3390/app12168137Research on the Reliability of Bridge Structure Construction Process System Based on Copula TheoryQingfu Li0Tianjing Zhang1School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy Engineering, Zhengzhou University, Zhengzhou 450001, ChinaVarious random factors in the bridge construction process directly affect the safety of the bridge life cycle. The existing theories on the reliability of bridge structure mainly focus on the reliability of components and the reliability of the bridge structure system in the completion and operation stages, while the research on the reliability of the structure system in the construction stage is relatively lacking. Therefore, this paper proposed using the Copula function to calculate the reliability index of the bridge structure construction process system. The basic theory of the Copula function was introduced in detail, and the formula was improved according to the actual situation of bridge construction. Finally, the sensitivity analysis of bridge system reliability was carried out. The research results showed that the method proposed in this paper based on Copula theory to calculate the reliability index of the bridge structure construction process system has strong applicability, simple calculation, and can be used in conjunction with the “interval estimation method”, which is suitable for large and complex bridge structural engineering. At the same time, the conclusion that the influence of failure mode correlation on structural reliability should not be ignored in the actual engineering construction process is confirmed.https://www.mdpi.com/2076-3417/12/16/8137bridge structure constructionCopula theorysystem reliability |
| spellingShingle | Qingfu Li Tianjing Zhang Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory Applied Sciences bridge structure construction Copula theory system reliability |
| title | Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory |
| title_full | Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory |
| title_fullStr | Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory |
| title_full_unstemmed | Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory |
| title_short | Research on the Reliability of Bridge Structure Construction Process System Based on Copula Theory |
| title_sort | research on the reliability of bridge structure construction process system based on copula theory |
| topic | bridge structure construction Copula theory system reliability |
| url | https://www.mdpi.com/2076-3417/12/16/8137 |
| work_keys_str_mv | AT qingfuli researchonthereliabilityofbridgestructureconstructionprocesssystembasedoncopulatheory AT tianjingzhang researchonthereliabilityofbridgestructureconstructionprocesssystembasedoncopulatheory |