Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing
The shear capacity of concrete beams without stirrups exhibits high variability, and the specific causes behind this difference in capacity remain unclear. This study conducts a combined analysis of shear failure using various advanced non-destructive testing (NDT) methods. Digital Image Correlation...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Developments in the Built Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666165925000730 |
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| author | Shengtao Li Xudong Chen Joan R. Casas Yangyang Sun |
| author_facet | Shengtao Li Xudong Chen Joan R. Casas Yangyang Sun |
| author_sort | Shengtao Li |
| collection | DOAJ |
| description | The shear capacity of concrete beams without stirrups exhibits high variability, and the specific causes behind this difference in capacity remain unclear. This study conducts a combined analysis of shear failure using various advanced non-destructive testing (NDT) methods. Digital Image Correlation (DIC) observed crack propagation, Distributed Fiber Optic Sensing (DFOS) detected strain in longitudinal reinforcement, and Acoustic Emission (AE) analyzed internal damage during critical crack development. The results indicate that identical beams without stirrups exhibit two failure modes with high and low load-bearing capacities, leading to a difference in capacity exceeding 65 %. The beams exhibit significant differences in stress states during the formation of critical shear cracks, as indicated by the strain profile measured through DFOS. Combined NDT methods successfully revealed that variations in crack propagation paths and differential crack coalescence are key factors leading to differences in shear capacity. This helps to elucidate the structural state changes during the failure process of the beams without stirrups. |
| format | Article |
| id | doaj-art-d8ae397b004a4d04a3f7f1a676cedf0c |
| institution | DOAJ |
| issn | 2666-1659 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Developments in the Built Environment |
| spelling | doaj-art-d8ae397b004a4d04a3f7f1a676cedf0c2025-08-20T02:56:55ZengElsevierDevelopments in the Built Environment2666-16592025-04-012210067310.1016/j.dibe.2025.100673Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testingShengtao Li0Xudong Chen1Joan R. Casas2Yangyang Sun3Central South Exploration & Design Research Institute Co., Ltd., Changsha, 410014, China; College of Defense Engineering, PLA Army Engineering University, Nanjing, 210014, China; Department of Civil and Environmental Engineering, Technical University of Catalunya, UPC-BarcelonaTech, Campus Nord, Calle Jordi Girona 1-3, Barcelona, 08034, SpainCollege of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, ChinaDepartment of Civil and Environmental Engineering, Technical University of Catalunya, UPC-BarcelonaTech, Campus Nord, Calle Jordi Girona 1-3, Barcelona, 08034, SpainCollege of Defense Engineering, PLA Army Engineering University, Nanjing, 210014, China; Corresponding author.The shear capacity of concrete beams without stirrups exhibits high variability, and the specific causes behind this difference in capacity remain unclear. This study conducts a combined analysis of shear failure using various advanced non-destructive testing (NDT) methods. Digital Image Correlation (DIC) observed crack propagation, Distributed Fiber Optic Sensing (DFOS) detected strain in longitudinal reinforcement, and Acoustic Emission (AE) analyzed internal damage during critical crack development. The results indicate that identical beams without stirrups exhibit two failure modes with high and low load-bearing capacities, leading to a difference in capacity exceeding 65 %. The beams exhibit significant differences in stress states during the formation of critical shear cracks, as indicated by the strain profile measured through DFOS. Combined NDT methods successfully revealed that variations in crack propagation paths and differential crack coalescence are key factors leading to differences in shear capacity. This helps to elucidate the structural state changes during the failure process of the beams without stirrups.http://www.sciencedirect.com/science/article/pii/S2666165925000730Failure modes of beamsShear behaviorAdvanced sensing and characterization methodsCombined non-destructive testing |
| spellingShingle | Shengtao Li Xudong Chen Joan R. Casas Yangyang Sun Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing Developments in the Built Environment Failure modes of beams Shear behavior Advanced sensing and characterization methods Combined non-destructive testing |
| title | Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing |
| title_full | Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing |
| title_fullStr | Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing |
| title_full_unstemmed | Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing |
| title_short | Characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non-destructive testing |
| title_sort | characterization of failure modes and shear behavior of reinforced concrete beams without stirrups based on combined non destructive testing |
| topic | Failure modes of beams Shear behavior Advanced sensing and characterization methods Combined non-destructive testing |
| url | http://www.sciencedirect.com/science/article/pii/S2666165925000730 |
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