Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature
This paper proposes a multiscale damage identification method for beam-type structures based on node curvature. Firstly, based on the assumption that micro-damage has little effect on stress redistribution and the basic relationship between structural bending moment and curvature, combined with the...
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| Format: | Article |
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MDPI AG
2024-10-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/11/3336 |
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| author | Kai Ye Shubi Zhang Qiuzhao Zhang Rumian Zhong Wenda Wang |
| author_facet | Kai Ye Shubi Zhang Qiuzhao Zhang Rumian Zhong Wenda Wang |
| author_sort | Kai Ye |
| collection | DOAJ |
| description | This paper proposes a multiscale damage identification method for beam-type structures based on node curvature. Firstly, based on the assumption that micro-damage has little effect on stress redistribution and the basic relationship between structural bending moment and curvature, combined with the denoising function of wavelet analysis, the linear matrix equation before and after node curvature damage is solved using the singular value decomposition (SVD) method. Then, the theoretical feasibility of this method is verified with laboratory tests of a simply supported beam. Finally, the damage sensitivity and noise resistance of this method are verified using field measurements of a beam bridge. The results show that the nodal curvature serves as an indicator parameter for damage identification in beam-type structures, enabling the precise localization of damage within these structures. When utilizing a multiscale finite element model for analysis, the nodal curvature enhances the ability to identify both the location and severity of damage within small-scale elements. Furthermore, this method can provide a reference for the damage identification and health monitoring of other types of bridges. |
| format | Article |
| id | doaj-art-05bb19b885e840929a68c9f265bc0de3 |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-05bb19b885e840929a68c9f265bc0de32025-08-20T02:28:03ZengMDPI AGBuildings2075-53092024-10-011411333610.3390/buildings14113336Multiscale Damage Identification Method of Beam-Type Structures Based on Node CurvatureKai Ye0Shubi Zhang1Qiuzhao Zhang2Rumian Zhong3Wenda Wang4School of Environment Science and Spatial Infomatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Environment Science and Spatial Infomatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Environment Science and Spatial Infomatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, ChinaSchool of Environment Science and Spatial Infomatics, China University of Mining and Technology, Xuzhou 221116, ChinaThis paper proposes a multiscale damage identification method for beam-type structures based on node curvature. Firstly, based on the assumption that micro-damage has little effect on stress redistribution and the basic relationship between structural bending moment and curvature, combined with the denoising function of wavelet analysis, the linear matrix equation before and after node curvature damage is solved using the singular value decomposition (SVD) method. Then, the theoretical feasibility of this method is verified with laboratory tests of a simply supported beam. Finally, the damage sensitivity and noise resistance of this method are verified using field measurements of a beam bridge. The results show that the nodal curvature serves as an indicator parameter for damage identification in beam-type structures, enabling the precise localization of damage within these structures. When utilizing a multiscale finite element model for analysis, the nodal curvature enhances the ability to identify both the location and severity of damage within small-scale elements. Furthermore, this method can provide a reference for the damage identification and health monitoring of other types of bridges.https://www.mdpi.com/2075-5309/14/11/3336node curvaturedenoising functionsingular value decompositionbeam-type structures |
| spellingShingle | Kai Ye Shubi Zhang Qiuzhao Zhang Rumian Zhong Wenda Wang Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature Buildings node curvature denoising function singular value decomposition beam-type structures |
| title | Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature |
| title_full | Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature |
| title_fullStr | Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature |
| title_full_unstemmed | Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature |
| title_short | Multiscale Damage Identification Method of Beam-Type Structures Based on Node Curvature |
| title_sort | multiscale damage identification method of beam type structures based on node curvature |
| topic | node curvature denoising function singular value decomposition beam-type structures |
| url | https://www.mdpi.com/2075-5309/14/11/3336 |
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