Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading
This paper examines the performance of reinforced concrete girders under cyclic loading. Seven T-girders were casted and tested. All girders were loaded under different constant cyclic loading in the midspan with the load ratio of 0.14∼0.23 and frequency of 3∼4 Hz. The study shows that the longitudi...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6656948 |
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| author | Jinquan Zhang Bing Bai Kechao Zhang Shoushan Cheng Shangchuan Zhao Lei Wang Chenxu Zhuang |
| author_facet | Jinquan Zhang Bing Bai Kechao Zhang Shoushan Cheng Shangchuan Zhao Lei Wang Chenxu Zhuang |
| author_sort | Jinquan Zhang |
| collection | DOAJ |
| description | This paper examines the performance of reinforced concrete girders under cyclic loading. Seven T-girders were casted and tested. All girders were loaded under different constant cyclic loading in the midspan with the load ratio of 0.14∼0.23 and frequency of 3∼4 Hz. The study shows that the longitudinal reinforcement fracture is the main cause of girder rupture. And during cyclic loading, the concrete cracks, strains, and deflections generally indicate a “three-stage” law. The measured data were small but developed quickly in the initial stage. Thereafter, the degradation gradually stabilized and continued for a long time. In the final stage, the cracks, strains, and stiffness degradation developed sharply and the girders failed quickly. The duration of the stage is very short and may be difficult to be caught. For the life estimation, the longitudinal rebar S-N curve is fitted using different collected data. The results show that the curve is in good agreement with the corresponding data, which may be an excellent candidate for the evaluation of fatigue life. |
| format | Article |
| id | doaj-art-8c43edcc60c741bbbe3f0b7af168f781 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-8c43edcc60c741bbbe3f0b7af168f7812025-02-03T00:20:22ZengWileyAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/66569486656948Fatigue Performance of Reinforced Concrete T-Girders under Cyclic LoadingJinquan Zhang0Bing Bai1Kechao Zhang2Shoushan Cheng3Shangchuan Zhao4Lei Wang5Chenxu Zhuang6Bridge and Tunnel Research CenterBridge and Tunnel Research CenterSchool of Civil EngineeringBridge and Tunnel Research CenterBridge and Tunnel Research CenterBridge and Tunnel Research CenterBridge and Tunnel Research CenterThis paper examines the performance of reinforced concrete girders under cyclic loading. Seven T-girders were casted and tested. All girders were loaded under different constant cyclic loading in the midspan with the load ratio of 0.14∼0.23 and frequency of 3∼4 Hz. The study shows that the longitudinal reinforcement fracture is the main cause of girder rupture. And during cyclic loading, the concrete cracks, strains, and deflections generally indicate a “three-stage” law. The measured data were small but developed quickly in the initial stage. Thereafter, the degradation gradually stabilized and continued for a long time. In the final stage, the cracks, strains, and stiffness degradation developed sharply and the girders failed quickly. The duration of the stage is very short and may be difficult to be caught. For the life estimation, the longitudinal rebar S-N curve is fitted using different collected data. The results show that the curve is in good agreement with the corresponding data, which may be an excellent candidate for the evaluation of fatigue life.http://dx.doi.org/10.1155/2021/6656948 |
| spellingShingle | Jinquan Zhang Bing Bai Kechao Zhang Shoushan Cheng Shangchuan Zhao Lei Wang Chenxu Zhuang Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading Advances in Civil Engineering |
| title | Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading |
| title_full | Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading |
| title_fullStr | Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading |
| title_full_unstemmed | Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading |
| title_short | Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading |
| title_sort | fatigue performance of reinforced concrete t girders under cyclic loading |
| url | http://dx.doi.org/10.1155/2021/6656948 |
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