Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature
The degradation of bond-slip behavior between steel and concrete after a fire is one of the potential causes of building collapse. In contrast, water cooling is the most commonly used method for extinguishing fires. This paper presents an experimental study on the bond-slip performance of water-cool...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523004515 |
| _version_ | 1827636258249113600 |
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| author | Shaohua Pang Yuming Huang Zongping Chen Peihuan Ye |
| author_facet | Shaohua Pang Yuming Huang Zongping Chen Peihuan Ye |
| author_sort | Shaohua Pang |
| collection | DOAJ |
| description | The degradation of bond-slip behavior between steel and concrete after a fire is one of the potential causes of building collapse. In contrast, water cooling is the most commonly used method for extinguishing fires. This paper presents an experimental study on the bond-slip performance of water-cooled steel-reinforced high-strength concrete (SRHC) after exposure to high temperatures. A total of 19 SRHC specimens were tested using push-out experiments to characterize the load-slip curves. The study also discusses the effects of key parameters, including maximum temperature, concrete strength, constant temperature duration, and anchorage length of the steel section, on bond-slip performance. The results indicate that the critical point for degradation of high-strength concrete due to water cooling is 400 °C. As the temperature increases, the bond strength and shear stiffness of the specimens decrease, while the energy dissipation capacity increases. Furthermore, this study develops a constitutive model for water-cooled bond-slip behavior in SRHC and proposes formulas for ultimate bond strength and residual bond strength. |
| first_indexed | 2024-03-09T15:39:32Z |
| format | Article |
| id | doaj.art-02dae4ea707e444a9cda51845e14b312 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-09T15:39:32Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-02dae4ea707e444a9cda51845e14b3122023-11-25T04:48:05ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02271Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperatureShaohua Pang0Yuming Huang1Zongping Chen2Peihuan Ye3Hualan Design (Group) Co., Ltd., Nanning 530011, PR ChinaCollege of Civil Engineering and Architecture, Guangxi University, Nanning 530004, PR ChinaCollege of Architecture and Civil Engineering, Nanning University, Nanning 530200, PR China; College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, PR China; Nanning Engineering Technology Research Center for Environment-friendly Building Materials and Building Performance Improvement, Nanning 530200, PR China; Corresponding author at: College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, PR China.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, PR ChinaThe degradation of bond-slip behavior between steel and concrete after a fire is one of the potential causes of building collapse. In contrast, water cooling is the most commonly used method for extinguishing fires. This paper presents an experimental study on the bond-slip performance of water-cooled steel-reinforced high-strength concrete (SRHC) after exposure to high temperatures. A total of 19 SRHC specimens were tested using push-out experiments to characterize the load-slip curves. The study also discusses the effects of key parameters, including maximum temperature, concrete strength, constant temperature duration, and anchorage length of the steel section, on bond-slip performance. The results indicate that the critical point for degradation of high-strength concrete due to water cooling is 400 °C. As the temperature increases, the bond strength and shear stiffness of the specimens decrease, while the energy dissipation capacity increases. Furthermore, this study develops a constitutive model for water-cooled bond-slip behavior in SRHC and proposes formulas for ultimate bond strength and residual bond strength.http://www.sciencedirect.com/science/article/pii/S2214509523004515Bond-slip performanceWater coolingSteel-reinforced high-strength concreteHigh temperature |
| spellingShingle | Shaohua Pang Yuming Huang Zongping Chen Peihuan Ye Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature Case Studies in Construction Materials Bond-slip performance Water cooling Steel-reinforced high-strength concrete High temperature |
| title | Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature |
| title_full | Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature |
| title_fullStr | Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature |
| title_full_unstemmed | Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature |
| title_short | Bond-slip performance of water cooling steel-reinforced high-strength concrete after high temperature |
| title_sort | bond slip performance of water cooling steel reinforced high strength concrete after high temperature |
| topic | Bond-slip performance Water cooling Steel-reinforced high-strength concrete High temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523004515 |
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