Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses
The present research aims to develop an effective and applicable structural damage detection method. A damage identification approach using only the changes of measured natural frequencies is presented. The structural damage model is assumed to be associated with a reduction of a contribution to the...
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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/10.1155/2015/906062 |
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| _version_ | 1849691637203075072 |
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| author | Ivana Mekjavić |
| author_facet | Ivana Mekjavić |
| author_sort | Ivana Mekjavić |
| collection | DOAJ |
| description | The present research aims to develop an effective and applicable structural damage detection method. A damage identification approach using only the changes of measured natural frequencies is presented. The structural damage model is assumed to be associated with a reduction of a contribution to the element stiffness matrix equivalent to a scalar reduction of the material modulus. The computational technique used to identify the damage from the measured data is described. The performance of the proposed technique on numerically simulated real concrete girder bridge is evaluated using imposed damage scenarios. To demonstrate the applicability of the proposed method by employing experimental measured natural frequencies this technique is applied for the first time to a simply supported reinforced concrete beam statically loaded incrementally to failure. The results of the damage identification procedure show that the proposed method can accurately locate the damage and predict the extent of the damage using high-frequency (here beyond the 4th order) vibrational responses. |
| format | Article |
| id | doaj-art-e228ccae07244226ac01edf36d73fe10 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e228ccae07244226ac01edf36d73fe102025-08-20T03:20:58ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/906062906062Identification of Structural Damage in Bridges Using High-Frequency Vibrational ResponsesIvana Mekjavić0Faculty of Civil Engineering, University of Zagreb, Kačićeva 26, 10000 Zagreb, CroatiaThe present research aims to develop an effective and applicable structural damage detection method. A damage identification approach using only the changes of measured natural frequencies is presented. The structural damage model is assumed to be associated with a reduction of a contribution to the element stiffness matrix equivalent to a scalar reduction of the material modulus. The computational technique used to identify the damage from the measured data is described. The performance of the proposed technique on numerically simulated real concrete girder bridge is evaluated using imposed damage scenarios. To demonstrate the applicability of the proposed method by employing experimental measured natural frequencies this technique is applied for the first time to a simply supported reinforced concrete beam statically loaded incrementally to failure. The results of the damage identification procedure show that the proposed method can accurately locate the damage and predict the extent of the damage using high-frequency (here beyond the 4th order) vibrational responses.http://dx.doi.org/10.1155/2015/906062 |
| spellingShingle | Ivana Mekjavić Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses Shock and Vibration |
| title | Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses |
| title_full | Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses |
| title_fullStr | Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses |
| title_full_unstemmed | Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses |
| title_short | Identification of Structural Damage in Bridges Using High-Frequency Vibrational Responses |
| title_sort | identification of structural damage in bridges using high frequency vibrational responses |
| url | http://dx.doi.org/10.1155/2015/906062 |
| work_keys_str_mv | AT ivanamekjavic identificationofstructuraldamageinbridgesusinghighfrequencyvibrationalresponses |