Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load
To improve the structural application of steel fiber-reinforced concrete with recycled aggregates (SFRC-RA) composited in gradation by large-particle natural coarse aggregate and small-particle recycled coarse aggregate, the large eccentric compression behavior of eight SFRC-RA columns was experimen...
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MDPI AG
2019-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/12/3/445 |
| _version_ | 1811237056293109760 |
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| author | Changyong Li Haibin Geng Caiheng Deng Bingchen Li Shunbo Zhao |
| author_facet | Changyong Li Haibin Geng Caiheng Deng Bingchen Li Shunbo Zhao |
| author_sort | Changyong Li |
| collection | DOAJ |
| description | To improve the structural application of steel fiber-reinforced concrete with recycled aggregates (SFRC-RA) composited in gradation by large-particle natural coarse aggregate and small-particle recycled coarse aggregate, the large eccentric compression behavior of eight SFRC-RA columns was experimentally investigated in this paper. The main parameters considered were the strength of the SFRC-RA and the volume fraction of the steel fiber. Details about the sectional concrete strain, the longitudinal steel bar strain, the lateral displacement, the cracking load, the crack distribution and crack width, and the ultimate load of the SFRC-RA columns were measured. The beneficial effects of steel fiber on these attributes were discussed, and the ductility corresponding to the lateral displacement of the SFRC-RA columns was also analyzed. Based on the test results and design principles, formulas were proposed for predicting the cracking resistance, crack width, and lateral displacement of SFRC-RA columns in a normal service state. The ultimate loads of the SFRC-RA columns under a large eccentric compression load were calculated, considering the second-order effects. |
| first_indexed | 2024-04-12T12:19:11Z |
| format | Article |
| id | doaj.art-acacc4c5d2cc42b6878e7eb7b4127a53 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T12:19:11Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-acacc4c5d2cc42b6878e7eb7b4127a532022-12-22T03:33:21ZengMDPI AGMaterials1996-19442019-01-0112344510.3390/ma12030445ma12030445Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression LoadChangyong Li0Haibin Geng1Caiheng Deng2Bingchen Li3Shunbo Zhao4School of Civil Engineering and Communications, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaInternational Joint Research Lab for Eco-building Materials and Engineering of Henan, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaInternational Joint Research Lab for Eco-building Materials and Engineering of Henan, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaInternational Joint Research Lab for Eco-building Materials and Engineering of Henan, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaHenan Provincial Collaborative Innovation Center for Water Resources High-efficient Utilization and Support Engineering, Zhengzhou 450046, ChinaTo improve the structural application of steel fiber-reinforced concrete with recycled aggregates (SFRC-RA) composited in gradation by large-particle natural coarse aggregate and small-particle recycled coarse aggregate, the large eccentric compression behavior of eight SFRC-RA columns was experimentally investigated in this paper. The main parameters considered were the strength of the SFRC-RA and the volume fraction of the steel fiber. Details about the sectional concrete strain, the longitudinal steel bar strain, the lateral displacement, the cracking load, the crack distribution and crack width, and the ultimate load of the SFRC-RA columns were measured. The beneficial effects of steel fiber on these attributes were discussed, and the ductility corresponding to the lateral displacement of the SFRC-RA columns was also analyzed. Based on the test results and design principles, formulas were proposed for predicting the cracking resistance, crack width, and lateral displacement of SFRC-RA columns in a normal service state. The ultimate loads of the SFRC-RA columns under a large eccentric compression load were calculated, considering the second-order effects.https://www.mdpi.com/1996-1944/12/3/445steel fiber-reinforced concrete with recycled aggregates (SFRC-RA)columnslarge eccentric compression loadlateral displacementcrack widthcrackingstiffness |
| spellingShingle | Changyong Li Haibin Geng Caiheng Deng Bingchen Li Shunbo Zhao Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load Materials steel fiber-reinforced concrete with recycled aggregates (SFRC-RA) columns large eccentric compression load lateral displacement crack width cracking stiffness |
| title | Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load |
| title_full | Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load |
| title_fullStr | Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load |
| title_full_unstemmed | Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load |
| title_short | Experimental Investigation on Columns of Steel Fiber Reinforced Concrete with Recycled Aggregates under Large Eccentric Compression Load |
| title_sort | experimental investigation on columns of steel fiber reinforced concrete with recycled aggregates under large eccentric compression load |
| topic | steel fiber-reinforced concrete with recycled aggregates (SFRC-RA) columns large eccentric compression load lateral displacement crack width cracking stiffness |
| url | https://www.mdpi.com/1996-1944/12/3/445 |
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