Substructural Identification of Flexural Rigidity for Beam-Like Structures
This study proposes a novel substructural identification method based on the Bernoulli-Euler beam theory with a single variable optimization scheme to estimate the flexural rigidity of a beam-like structure such as a bridge deck, which is one of the major structural integrity indices of a structure....
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/726410 |
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| _version_ | 1832561900053856256 |
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| author | Ki-Young Koo Jin-Hak Yi |
| author_facet | Ki-Young Koo Jin-Hak Yi |
| author_sort | Ki-Young Koo |
| collection | DOAJ |
| description | This study proposes a novel substructural identification method based on the Bernoulli-Euler beam theory with a single variable optimization scheme to estimate the flexural rigidity of a beam-like structure such as a bridge deck, which is one of the major structural integrity indices of a structure. In ordinary bridges, the boundary condition of a superstructure can be significantly altered by aging and environmental variations, and the actual boundary conditions are generally unknown or difficult to be estimated correctly. To efficiently bypass the problems related to boundary conditions, a substructural identification method is proposed to evaluate the flexural rigidity regardless of the actual boundary conditions by isolating an identification region within the internal substructure. The proposed method is very simple and effective as it utilizes the single variable optimization based on the transfer function formulated utilizing Bernoulli Euler beam theory for the inverse analysis to obtain the flexural rigidity. This novel method is also rigorously investigated by applying it for estimating the flexural rigidity of a simply supported beam model with different boundary conditions, a concrete plate-girder bridge model with different length of an internal substructure, a cantilever-type wind turbine tower structure with different type of excitation, and a steel box-girder bridge model with internal structural damages. |
| format | Article |
| id | doaj-art-2a8b8d0cb845416a8b8a6a3a75b0fca0 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2a8b8d0cb845416a8b8a6a3a75b0fca02025-02-03T01:23:49ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/726410726410Substructural Identification of Flexural Rigidity for Beam-Like StructuresKi-Young Koo0Jin-Hak Yi1College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, Devon EX4 4SB, UKCoastal and Environmental Engineering Division, Korea Institute of Ocean Science and Technology, Ansan, Gyeonggi 426-744, Republic of KoreaThis study proposes a novel substructural identification method based on the Bernoulli-Euler beam theory with a single variable optimization scheme to estimate the flexural rigidity of a beam-like structure such as a bridge deck, which is one of the major structural integrity indices of a structure. In ordinary bridges, the boundary condition of a superstructure can be significantly altered by aging and environmental variations, and the actual boundary conditions are generally unknown or difficult to be estimated correctly. To efficiently bypass the problems related to boundary conditions, a substructural identification method is proposed to evaluate the flexural rigidity regardless of the actual boundary conditions by isolating an identification region within the internal substructure. The proposed method is very simple and effective as it utilizes the single variable optimization based on the transfer function formulated utilizing Bernoulli Euler beam theory for the inverse analysis to obtain the flexural rigidity. This novel method is also rigorously investigated by applying it for estimating the flexural rigidity of a simply supported beam model with different boundary conditions, a concrete plate-girder bridge model with different length of an internal substructure, a cantilever-type wind turbine tower structure with different type of excitation, and a steel box-girder bridge model with internal structural damages.http://dx.doi.org/10.1155/2015/726410 |
| spellingShingle | Ki-Young Koo Jin-Hak Yi Substructural Identification of Flexural Rigidity for Beam-Like Structures Shock and Vibration |
| title | Substructural Identification of Flexural Rigidity for Beam-Like Structures |
| title_full | Substructural Identification of Flexural Rigidity for Beam-Like Structures |
| title_fullStr | Substructural Identification of Flexural Rigidity for Beam-Like Structures |
| title_full_unstemmed | Substructural Identification of Flexural Rigidity for Beam-Like Structures |
| title_short | Substructural Identification of Flexural Rigidity for Beam-Like Structures |
| title_sort | substructural identification of flexural rigidity for beam like structures |
| url | http://dx.doi.org/10.1155/2015/726410 |
| work_keys_str_mv | AT kiyoungkoo substructuralidentificationofflexuralrigidityforbeamlikestructures AT jinhakyi substructuralidentificationofflexuralrigidityforbeamlikestructures |