Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns
Carbon fiber–reinforced polymers (CFRPs) have excellent tensile strength and great resistance to chloride ion corrosion. In the 21st century of rapid development in marine construction, the composite structure of CFRP and coral aggregate concrete (CAC) has broad development prospects and great resea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509521003788 |
| _version_ | 1811250769151655936 |
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| author | Zhiheng Deng Wei Chai Bing Liu Yuhan Hu |
| author_facet | Zhiheng Deng Wei Chai Bing Liu Yuhan Hu |
| author_sort | Zhiheng Deng |
| collection | DOAJ |
| description | Carbon fiber–reinforced polymers (CFRPs) have excellent tensile strength and great resistance to chloride ion corrosion. In the 21st century of rapid development in marine construction, the composite structure of CFRP and coral aggregate concrete (CAC) has broad development prospects and great research value. This paper proposes a CFRP–confined coral aggregate concrete (CCAC) column as a novel composite column suitable for use in marine environments. Eighteen CCAC circular stub columns were constructed, and compression tests were carried out under axial and eccentric loads. The compression behavior, including the load–carrying capacity, stress–strain relationship, and ductility of CCAC stub columns was investigated. Test results show that the CFRP sheets greatly improve the load–carrying capacity and ductility of the CAC stub columns. Among the three influencing factors, the influence on the load–carrying capacity and ductility of the CCAC stub columns is eccentric distance, the number of CFRP layers, and the CAC strength in descending order. Finally, the load–carrying capacity calculation method and the stress–strain relationship of CCAC stub columns under axial compression were established, and an eccentric reduction coefficient was proposed to calculate the load–carrying capacity of CCAC columns under different eccentric distances. |
| first_indexed | 2024-04-12T16:09:36Z |
| format | Article |
| id | doaj.art-19ee174f2d354e75a3f4842e31459da4 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-12T16:09:36Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-19ee174f2d354e75a3f4842e31459da42022-12-22T03:25:57ZengElsevierCase Studies in Construction Materials2214-50952022-06-0116e00863Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columnsZhiheng Deng0Wei Chai1Bing Liu2Yuhan Hu3Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China; College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China; College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China; GuangXi Key Laboratory of New Energy and Building Energy Saving, Guilin University of Technology, Guilin 541004, China; Correspondence to: No. 100, University East Road, Nanning, Guangxi, China.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaCarbon fiber–reinforced polymers (CFRPs) have excellent tensile strength and great resistance to chloride ion corrosion. In the 21st century of rapid development in marine construction, the composite structure of CFRP and coral aggregate concrete (CAC) has broad development prospects and great research value. This paper proposes a CFRP–confined coral aggregate concrete (CCAC) column as a novel composite column suitable for use in marine environments. Eighteen CCAC circular stub columns were constructed, and compression tests were carried out under axial and eccentric loads. The compression behavior, including the load–carrying capacity, stress–strain relationship, and ductility of CCAC stub columns was investigated. Test results show that the CFRP sheets greatly improve the load–carrying capacity and ductility of the CAC stub columns. Among the three influencing factors, the influence on the load–carrying capacity and ductility of the CCAC stub columns is eccentric distance, the number of CFRP layers, and the CAC strength in descending order. Finally, the load–carrying capacity calculation method and the stress–strain relationship of CCAC stub columns under axial compression were established, and an eccentric reduction coefficient was proposed to calculate the load–carrying capacity of CCAC columns under different eccentric distances.http://www.sciencedirect.com/science/article/pii/S2214509521003788Coral aggregate concrete (CAC) circular stub columnsCFRP–confinedCompression behaviorLoad–carrying capacityStress–strain relationship |
| spellingShingle | Zhiheng Deng Wei Chai Bing Liu Yuhan Hu Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns Case Studies in Construction Materials Coral aggregate concrete (CAC) circular stub columns CFRP–confined Compression behavior Load–carrying capacity Stress–strain relationship |
| title | Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns |
| title_full | Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns |
| title_fullStr | Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns |
| title_full_unstemmed | Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns |
| title_short | Compression behavior of CFRP–confined coral aggregate concrete (CCAC) circular stub columns |
| title_sort | compression behavior of cfrp confined coral aggregate concrete ccac circular stub columns |
| topic | Coral aggregate concrete (CAC) circular stub columns CFRP–confined Compression behavior Load–carrying capacity Stress–strain relationship |
| url | http://www.sciencedirect.com/science/article/pii/S2214509521003788 |
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