Damage detection of rc slabs using nonlinear vibration features
Studied herein are the signatures of nonlinear vibration characteristics of damaged reinforced concrete structures using the wavelet transform (WT). A two-span RC slab built in 2003 was tested to failure in the laboratory. Vibration measurements were carried out at various stages of structural damag...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/29462 |
| _version_ | 1848752810327277568 |
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| author | Zhu, X. Hao, Hong |
| author_facet | Zhu, X. Hao, Hong |
| author_sort | Zhu, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Studied herein are the signatures of nonlinear vibration characteristics of damaged reinforced concrete structures using the wavelet transform (WT). A two-span RC slab built in 2003 was tested to failure in the laboratory. Vibration measurements were carried out at various stages of structural damage. The vibration frequencies, mode shapes, and damping ratios at each loading stage were extracted and analyzed. It is found that the vibration frequencies are not sensitive to small damages, but are good indicators when damage is severe. The dynamic responses are also analyzed in the timefrequency domain by WT and the skeleton curve is constructed to describe the nonlinear characteristics in the reinforced concrete structures. The results show that the skeleton curves are good indicators of damage in the reinforced concrete structures because they are more sensitive to small damages than vibration frequencies. © 2009 World Scientific Publishing Company. |
| first_indexed | 2025-11-14T08:14:32Z |
| format | Conference Paper |
| id | curtin-20.500.11937-29462 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:14:32Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-294622017-09-13T15:26:00Z Damage detection of rc slabs using nonlinear vibration features Zhu, X. Hao, Hong Studied herein are the signatures of nonlinear vibration characteristics of damaged reinforced concrete structures using the wavelet transform (WT). A two-span RC slab built in 2003 was tested to failure in the laboratory. Vibration measurements were carried out at various stages of structural damage. The vibration frequencies, mode shapes, and damping ratios at each loading stage were extracted and analyzed. It is found that the vibration frequencies are not sensitive to small damages, but are good indicators when damage is severe. The dynamic responses are also analyzed in the timefrequency domain by WT and the skeleton curve is constructed to describe the nonlinear characteristics in the reinforced concrete structures. The results show that the skeleton curves are good indicators of damage in the reinforced concrete structures because they are more sensitive to small damages than vibration frequencies. © 2009 World Scientific Publishing Company. 2009 Conference Paper http://hdl.handle.net/20.500.11937/29462 10.1142/S0219455409003247 restricted |
| spellingShingle | Zhu, X. Hao, Hong Damage detection of rc slabs using nonlinear vibration features |
| title | Damage detection of rc slabs using nonlinear vibration features |
| title_full | Damage detection of rc slabs using nonlinear vibration features |
| title_fullStr | Damage detection of rc slabs using nonlinear vibration features |
| title_full_unstemmed | Damage detection of rc slabs using nonlinear vibration features |
| title_short | Damage detection of rc slabs using nonlinear vibration features |
| title_sort | damage detection of rc slabs using nonlinear vibration features |
| url | http://hdl.handle.net/20.500.11937/29462 |