Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading
To investigate the influence of repeated loading on the bond behavior between steel bars and reactive powder concrete (RPC), this study conducted repeated loading tests on eight beam specimens and one static loading test as a control. The effects of stress levels and the number of repeated loading c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/15/8/1305 |
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| author | Dewen Zhang Yanming Feng Ruihui Han Xiangsheng Kong Dehong Wang Chao Ren |
| author_facet | Dewen Zhang Yanming Feng Ruihui Han Xiangsheng Kong Dehong Wang Chao Ren |
| author_sort | Dewen Zhang |
| collection | DOAJ |
| description | To investigate the influence of repeated loading on the bond behavior between steel bars and reactive powder concrete (RPC), this study conducted repeated loading tests on eight beam specimens and one static loading test as a control. The effects of stress levels and the number of repeated loading cycles on the bond behavior between steel bars and RPC were examined. The results indicate that the static failure mode was characterized by steel bar pull-out accompanied by significant plastic deformation, with no propagation of cracks in the RPC after their initiation, demonstrating the excellent crack control capability of RPC. After 10,000 cycles of repeated loading at a high stress level (Z = 0.9), the ultimate bond strength decreased by only 3.68%, indicating the superior fatigue resistance of the steel–RPC interface. Based on the analysis of slip accumulation effects, a constitutive model considering stress levels and the number of repeated loading cycles was established. This model can serve as a basis for the design of steel anchorage in RPC structures subjected to cyclic loading. |
| format | Article |
| id | doaj-art-eb21ab6fc2a84e528d6333c5b7f76312 |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-eb21ab6fc2a84e528d6333c5b7f763122025-08-20T02:24:39ZengMDPI AGBuildings2075-53092025-04-01158130510.3390/buildings15081305Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated LoadingDewen Zhang0Yanming Feng1Ruihui Han2Xiangsheng Kong3Dehong Wang4Chao Ren5State Grid Heilongjiang Electric Power Co., Ltd. Electric Power Research Institute, Harbin 150000, ChinaState Grid Heilongjiang Electric Power Co., Ltd. Electric Power Research Institute, Harbin 150000, ChinaState Grid Heilongjiang Electric Power Co., Ltd. Electric Power Research Institute, Harbin 150000, ChinaSchool of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, ChinaSchool of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, ChinaSchool of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, ChinaTo investigate the influence of repeated loading on the bond behavior between steel bars and reactive powder concrete (RPC), this study conducted repeated loading tests on eight beam specimens and one static loading test as a control. The effects of stress levels and the number of repeated loading cycles on the bond behavior between steel bars and RPC were examined. The results indicate that the static failure mode was characterized by steel bar pull-out accompanied by significant plastic deformation, with no propagation of cracks in the RPC after their initiation, demonstrating the excellent crack control capability of RPC. After 10,000 cycles of repeated loading at a high stress level (Z = 0.9), the ultimate bond strength decreased by only 3.68%, indicating the superior fatigue resistance of the steel–RPC interface. Based on the analysis of slip accumulation effects, a constitutive model considering stress levels and the number of repeated loading cycles was established. This model can serve as a basis for the design of steel anchorage in RPC structures subjected to cyclic loading.https://www.mdpi.com/2075-5309/15/8/1305reactive powder concretebond behaviorrepeated loading teststress levelconstitutive relationship |
| spellingShingle | Dewen Zhang Yanming Feng Ruihui Han Xiangsheng Kong Dehong Wang Chao Ren Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading Buildings reactive powder concrete bond behavior repeated loading test stress level constitutive relationship |
| title | Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading |
| title_full | Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading |
| title_fullStr | Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading |
| title_full_unstemmed | Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading |
| title_short | Bond Behavior Between Steel Bar and Reactive Powder Concrete Under Repeated Loading |
| title_sort | bond behavior between steel bar and reactive powder concrete under repeated loading |
| topic | reactive powder concrete bond behavior repeated loading test stress level constitutive relationship |
| url | https://www.mdpi.com/2075-5309/15/8/1305 |
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