Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column
Round-end aluminum alloy tube concrete columns had good durability and were very economical, but the low strength and elastic modulus of aluminum alloy led to the need for improvement in performance. This paper proposes carbon fiber reinforced plastic (CFRP) strip reinforced round-end aluminum alloy...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-02-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0192324 |
| _version_ | 1797278324989362176 |
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| author | Chuantao Cheng Congrong Tang Xin Xiong Qirong Qiu Pengcheng Liao Iwanami Motoi |
| author_facet | Chuantao Cheng Congrong Tang Xin Xiong Qirong Qiu Pengcheng Liao Iwanami Motoi |
| author_sort | Chuantao Cheng |
| collection | DOAJ |
| description | Round-end aluminum alloy tube concrete columns had good durability and were very economical, but the low strength and elastic modulus of aluminum alloy led to the need for improvement in performance. This paper proposes carbon fiber reinforced plastic (CFRP) strip reinforced round-end aluminum alloy tube concrete (CREAC) columns and investigates their mechanical properties under axial compression loads. A total of eight specimens were tested, including seven CFRP reinforced specimens and one control specimen. The effects of the width, spacing, and number of layers of CFRP strips on the axial compression performance of CREAC under the same amount of CFRP were studied. The experimental results indicate that the main failure modes of the specimen are the buckling of round-end aluminum alloy tubes and the fracture of CFRP strips. The CFRP strip can significantly improve the ultimate bearing capacity of the specimen, with a maximum increase of 15.3% in the test range. When the amount of CFRP is the same, as the number of CFRP strips decreases, the bearing capacity and ductility deteriorate. Increasing the width and thickness of CFRP strips significantly improves ductility. On the basis of the validated finite element model, parameter analysis was conducted, and the calculation method for stability coefficients was fitted. A calculation method for axial compression bearing capacity suitable for CREAC was proposed, with a maximum error of less than 1% between the predicted results and experimental results. |
| first_indexed | 2024-03-07T16:00:36Z |
| format | Article |
| id | doaj.art-ff5b3b5364af4d8b84f2ed12e42313ee |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-07T16:00:36Z |
| publishDate | 2024-02-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-ff5b3b5364af4d8b84f2ed12e42313ee2024-03-04T21:29:33ZengAIP Publishing LLCAIP Advances2158-32262024-02-01142025119025119-1410.1063/5.0192324Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete columnChuantao Cheng0Congrong Tang1Xin Xiong2Qirong Qiu3Pengcheng Liao4Iwanami Motoi5School of Fundamental Science and Engineering, Department of Environmental and Civil Engineering, Waseda University, Tokyo 169-8555, JapanJiangsu Xilinghui Construction Engineering Co., Ltd., Nanjing 210000, People’s Republic of ChinaCompus Construction Office, Wuhan University of Science and Technology, Wuhan 430081, People’s Republic of ChinaShanghai Construction Engineering Fifth Construction Group Co., Ltd., Shanghai 200063, People’s Republic of ChinaGuangxi Construction Engineering Group Third Construction Engineering Co., Ltd., The Guangxi Zhuang Autonomous Region, Liuzhou 545000, People’s Republic of ChinaSchool of Fundamental Science and Engineering, Department of Environmental and Civil Engineering, Waseda University, Tokyo 169-8555, JapanRound-end aluminum alloy tube concrete columns had good durability and were very economical, but the low strength and elastic modulus of aluminum alloy led to the need for improvement in performance. This paper proposes carbon fiber reinforced plastic (CFRP) strip reinforced round-end aluminum alloy tube concrete (CREAC) columns and investigates their mechanical properties under axial compression loads. A total of eight specimens were tested, including seven CFRP reinforced specimens and one control specimen. The effects of the width, spacing, and number of layers of CFRP strips on the axial compression performance of CREAC under the same amount of CFRP were studied. The experimental results indicate that the main failure modes of the specimen are the buckling of round-end aluminum alloy tubes and the fracture of CFRP strips. The CFRP strip can significantly improve the ultimate bearing capacity of the specimen, with a maximum increase of 15.3% in the test range. When the amount of CFRP is the same, as the number of CFRP strips decreases, the bearing capacity and ductility deteriorate. Increasing the width and thickness of CFRP strips significantly improves ductility. On the basis of the validated finite element model, parameter analysis was conducted, and the calculation method for stability coefficients was fitted. A calculation method for axial compression bearing capacity suitable for CREAC was proposed, with a maximum error of less than 1% between the predicted results and experimental results.http://dx.doi.org/10.1063/5.0192324 |
| spellingShingle | Chuantao Cheng Congrong Tang Xin Xiong Qirong Qiu Pengcheng Liao Iwanami Motoi Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column AIP Advances |
| title | Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column |
| title_full | Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column |
| title_fullStr | Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column |
| title_full_unstemmed | Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column |
| title_short | Experimental study and numerical analysis on the axial compression performance of CFRP strip reinforced round-end aluminum alloy tube concrete column |
| title_sort | experimental study and numerical analysis on the axial compression performance of cfrp strip reinforced round end aluminum alloy tube concrete column |
| url | http://dx.doi.org/10.1063/5.0192324 |
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