A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures
Frequency response function (FRF) data can provide considerably more information on damage in the desired frequency range as compared to modal data extracted from a very limited range around resonances. Among structural health monitoring techniques, FRF-based methods have the potential to locate str...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/4509576 |
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| author | Ching-Yun Kao Xuan-Zhi Chen Shih-Lin Hung |
| author_facet | Ching-Yun Kao Xuan-Zhi Chen Shih-Lin Hung |
| author_sort | Ching-Yun Kao |
| collection | DOAJ |
| description | Frequency response function (FRF) data can provide considerably more information on damage in the desired frequency range as compared to modal data extracted from a very limited range around resonances. Among structural health monitoring techniques, FRF-based methods have the potential to locate structural damage. Conventional structural damage detection technology collects structural response data using contact systems, such as displacement or acceleration transducers. However, installing these contact systems can be costly in terms of labor, cost, and time. Several noncontact measurement technologies, such as optical, laser, radar, and GPS, have been developed to overcome these obstacles. Given the rapid advances in optical imaging hardware technology, the use of digital photography in structural monitoring systems has attracted considerable attention. This study develops a displacement FRF-based approach to locate damage to building structures. The proposed damage location index, CurveFRFDI, improves the sensitivity of SubFRFDI, which is a substructure FRF-based damage location index proposed by Lin et al. (2012). Moreover, the feasibility of applying the proposed approach to locate damage to building structures using displacement measured by a digital camera combined with digital image correlation techniques is also investigated in this study. A numerical example and an experimental example are presented to demonstrate the feasibility of using the proposed approach to locate damage to building structures for single and multiple nonadjacent damage locations. |
| format | Article |
| id | doaj-art-5f0b8469d9104862b9b0c2a6238c08bc |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-5f0b8469d9104862b9b0c2a6238c08bc2025-02-03T05:53:09ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/45095764509576A Displacement Frequency Response Function-Based Approach for Locating Damage to Building StructuresChing-Yun Kao0Xuan-Zhi Chen1Shih-Lin Hung2Department of Applied Geoinformatics, Chia Nan University of Pharmacy & Science, No. 60, Sec. 1, Erh-Jen Rd., Tainan 71710, TaiwanDepartment of Civil Engineering, National Chiao Tung University, No. 1001, University Rd., Hsinchu 300, TaiwanDepartment of Civil Engineering, National Chiao Tung University, No. 1001, University Rd., Hsinchu 300, TaiwanFrequency response function (FRF) data can provide considerably more information on damage in the desired frequency range as compared to modal data extracted from a very limited range around resonances. Among structural health monitoring techniques, FRF-based methods have the potential to locate structural damage. Conventional structural damage detection technology collects structural response data using contact systems, such as displacement or acceleration transducers. However, installing these contact systems can be costly in terms of labor, cost, and time. Several noncontact measurement technologies, such as optical, laser, radar, and GPS, have been developed to overcome these obstacles. Given the rapid advances in optical imaging hardware technology, the use of digital photography in structural monitoring systems has attracted considerable attention. This study develops a displacement FRF-based approach to locate damage to building structures. The proposed damage location index, CurveFRFDI, improves the sensitivity of SubFRFDI, which is a substructure FRF-based damage location index proposed by Lin et al. (2012). Moreover, the feasibility of applying the proposed approach to locate damage to building structures using displacement measured by a digital camera combined with digital image correlation techniques is also investigated in this study. A numerical example and an experimental example are presented to demonstrate the feasibility of using the proposed approach to locate damage to building structures for single and multiple nonadjacent damage locations.http://dx.doi.org/10.1155/2020/4509576 |
| spellingShingle | Ching-Yun Kao Xuan-Zhi Chen Shih-Lin Hung A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures Advances in Civil Engineering |
| title | A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures |
| title_full | A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures |
| title_fullStr | A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures |
| title_full_unstemmed | A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures |
| title_short | A Displacement Frequency Response Function-Based Approach for Locating Damage to Building Structures |
| title_sort | displacement frequency response function based approach for locating damage to building structures |
| url | http://dx.doi.org/10.1155/2020/4509576 |
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