Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement
The RC beam usually works under the combined action of external loads and corrosion expansion pressures, and the RC beams without corrosion of reinforcements have good mechanical performance. In this study, the mesoscopic models of the three-point bending RC beams with different aggregates, differen...
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| Main Authors: | , , , |
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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/10.1155/2020/3603528 |
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| _version_ | 1832546819990618112 |
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| author | Nan Wu Hao Jin Qingrong Tian Zheng Li |
| author_facet | Nan Wu Hao Jin Qingrong Tian Zheng Li |
| author_sort | Nan Wu |
| collection | DOAJ |
| description | The RC beam usually works under the combined action of external loads and corrosion expansion pressures, and the RC beams without corrosion of reinforcements have good mechanical performance. In this study, the mesoscopic models of the three-point bending RC beams with different aggregates, different aggregate contents, and different corrosion expansion pressures were built. The plastic strain and the deflection are analyzed. The results show that the cracks of the RC beam with polygon aggregates are more dispersed than circle aggregates. As the aggregate content increases, the maximum plastic strain and maximum deflection of the RC beam decrease. The aggregate contents increased from 25% to 35%, the maximum plastic strain decreased from 3.4 × 10−3 to 2.1 × 10−3, and the maximum deflection of the lower boundary of the beam decreased from 0.005 m to 0.004 m. Furthermore, the corrosion expansion pressure makes the plastic strain increase in the concrete cover. |
| format | Article |
| id | doaj-art-91c1fbc7748241e8998afa34044593f1 |
| 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-91c1fbc7748241e8998afa34044593f12025-02-03T06:47:00ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/36035283603528Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded ReinforcementNan Wu0Hao Jin1Qingrong Tian2Zheng Li3Kunshan Rail Transit Investment & Properties Co., Ltd., 215332 Kunshan, ChinaSchool of Transportation, Southeast University, Nanjing 211189, ChinaThe Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaThe Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaThe RC beam usually works under the combined action of external loads and corrosion expansion pressures, and the RC beams without corrosion of reinforcements have good mechanical performance. In this study, the mesoscopic models of the three-point bending RC beams with different aggregates, different aggregate contents, and different corrosion expansion pressures were built. The plastic strain and the deflection are analyzed. The results show that the cracks of the RC beam with polygon aggregates are more dispersed than circle aggregates. As the aggregate content increases, the maximum plastic strain and maximum deflection of the RC beam decrease. The aggregate contents increased from 25% to 35%, the maximum plastic strain decreased from 3.4 × 10−3 to 2.1 × 10−3, and the maximum deflection of the lower boundary of the beam decreased from 0.005 m to 0.004 m. Furthermore, the corrosion expansion pressure makes the plastic strain increase in the concrete cover.http://dx.doi.org/10.1155/2020/3603528 |
| spellingShingle | Nan Wu Hao Jin Qingrong Tian Zheng Li Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement Advances in Civil Engineering |
| title | Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement |
| title_full | Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement |
| title_fullStr | Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement |
| title_full_unstemmed | Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement |
| title_short | Mesoscopic Characteristics on Cracks of Three-Point Bending RC Beam with Corroded Reinforcement |
| title_sort | mesoscopic characteristics on cracks of three point bending rc beam with corroded reinforcement |
| url | http://dx.doi.org/10.1155/2020/3603528 |
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