Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load
To investigate the ultimate bearing capacity and deformation of the recycled self-compacting concrete-filled circular steel tubular (RSCCFCST) long columns subjected to axial load, nine specimens with different recycled self-compacting concrete (RSCC) strength grades and slenderness ratios are teste...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/4170705 |
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| author | Feng Yu Jie Song Shuangshuang Bu Jingfeng Wang Haiying Wan Wanyu Shen Wei Huang Yuan Fang |
| author_facet | Feng Yu Jie Song Shuangshuang Bu Jingfeng Wang Haiying Wan Wanyu Shen Wei Huang Yuan Fang |
| author_sort | Feng Yu |
| collection | DOAJ |
| description | To investigate the ultimate bearing capacity and deformation of the recycled self-compacting concrete-filled circular steel tubular (RSCCFCST) long columns subjected to axial load, nine specimens with different recycled self-compacting concrete (RSCC) strength grades and slenderness ratios are tested. The experimental results indicate that the lateral deflection dominates the buckling failure of the specimens. The ultimate bearing capacity of the specimens is enhanced gradually as the RSCC strength grade increases but decreases as the slenderness ratio rises. The load-strain curves are linear and basically coincide at the elastic stage. The decrease in the slenderness ratio or increase in the RSCC strength grade contributes to the improvement of the stiffness and ultimate circumferential and axial strains of the columns gradually. Based on the combined tangent modulus theory and bearing capacity of the RSCCFCST short columns, two estimation models are presented to predict the ultimate bearing capacity of the RSCCFCST long columns. Additionally, comparisons between the calculation results of the ultimate strength demonstrate that the prediction models established in this study are more accurate than the other specifications mentioned. |
| format | Article |
| id | doaj-art-85793ecc6b914c509a5ed539b6a9f95e |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-85793ecc6b914c509a5ed539b6a9f95e2025-02-03T01:24:54ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/41707054170705Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial LoadFeng Yu0Jie Song1Shuangshuang Bu2Jingfeng Wang3Haiying Wan4Wanyu Shen5Wei Huang6Yuan Fang7State Key Laboratory of Building Safety and Built Environment, Beijing 100013, ChinaDepartment of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, Anhui, ChinaDepartment of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, Anhui, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaTechnology Center, Anhui Fuhuang Steel Structure Co. Ltd., Chaohu 238076, ChinaDepartment of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, Anhui, ChinaDepartment of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, Anhui, ChinaTo investigate the ultimate bearing capacity and deformation of the recycled self-compacting concrete-filled circular steel tubular (RSCCFCST) long columns subjected to axial load, nine specimens with different recycled self-compacting concrete (RSCC) strength grades and slenderness ratios are tested. The experimental results indicate that the lateral deflection dominates the buckling failure of the specimens. The ultimate bearing capacity of the specimens is enhanced gradually as the RSCC strength grade increases but decreases as the slenderness ratio rises. The load-strain curves are linear and basically coincide at the elastic stage. The decrease in the slenderness ratio or increase in the RSCC strength grade contributes to the improvement of the stiffness and ultimate circumferential and axial strains of the columns gradually. Based on the combined tangent modulus theory and bearing capacity of the RSCCFCST short columns, two estimation models are presented to predict the ultimate bearing capacity of the RSCCFCST long columns. Additionally, comparisons between the calculation results of the ultimate strength demonstrate that the prediction models established in this study are more accurate than the other specifications mentioned.http://dx.doi.org/10.1155/2021/4170705 |
| spellingShingle | Feng Yu Jie Song Shuangshuang Bu Jingfeng Wang Haiying Wan Wanyu Shen Wei Huang Yuan Fang Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load Advances in Civil Engineering |
| title | Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load |
| title_full | Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load |
| title_fullStr | Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load |
| title_full_unstemmed | Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load |
| title_short | Bearing Capacity of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Long Columns Subjected to Axial Load |
| title_sort | bearing capacity of recycled self compacting concrete filled circular steel tubular long columns subjected to axial load |
| url | http://dx.doi.org/10.1155/2021/4170705 |
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