Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars
In this paper, eccentric compressive tests and theoretical studies of grade 735 MPa reinforced concrete columns were conducted. The eccentric distance and strength of the longitudinal reinforcement were used as experimental parameters to investigate the bearing capacity, failure mode, and strength o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/1/188 |
| _version_ | 1797445018789609472 |
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| author | Xiao Zhang Yijing Ding Xuekun Wang Lele Sun |
| author_facet | Xiao Zhang Yijing Ding Xuekun Wang Lele Sun |
| author_sort | Xiao Zhang |
| collection | DOAJ |
| description | In this paper, eccentric compressive tests and theoretical studies of grade 735 MPa reinforced concrete columns were conducted. The eccentric distance and strength of the longitudinal reinforcement were used as experimental parameters to investigate the bearing capacity, failure mode, and strength of eccentric compressive behavior of NPR735 high-strength steel bars. When the load eccentricity of the reinforced concrete columns was small or longitudinal, the reinforcement ratio was large, and small eccentricity failure occurred. The results were similar to the failure mode of ordinary concrete columns with traditional steel bars. When the load eccentricity decreased, the bearing capacity increased, but the deflection and ductility of the specimen decreased. When the strength of the longitudinal reinforcement increased, the bearing capacity of the specimen increased slightly. Finally, according to current design methods in the concrete structure design code, the bearing capacity of the eccentric compressive column was obtained, and the calculated results were compared with the experimental results to verify the applicability of the concrete structure design code GB50010-2010 to concrete columns with grade 735 MPa reinforcement. |
| first_indexed | 2024-03-09T13:20:45Z |
| format | Article |
| id | doaj.art-c3527bddd4fd4dd1834ab128838c221a |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T13:20:45Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-c3527bddd4fd4dd1834ab128838c221a2023-11-30T21:31:07ZengMDPI AGBuildings2075-53092023-01-0113118810.3390/buildings13010188Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel BarsXiao Zhang0Yijing Ding1Xuekun Wang2Lele Sun3School of Civil Engineering, Shandong University, Jinan 256001, ChinaSchool of Civil Engineering, Shandong University, Jinan 256001, ChinaSchool of Civil Engineering, Shandong University, Jinan 256001, ChinaSchool of Civil Engineering, Shandong University, Jinan 256001, ChinaIn this paper, eccentric compressive tests and theoretical studies of grade 735 MPa reinforced concrete columns were conducted. The eccentric distance and strength of the longitudinal reinforcement were used as experimental parameters to investigate the bearing capacity, failure mode, and strength of eccentric compressive behavior of NPR735 high-strength steel bars. When the load eccentricity of the reinforced concrete columns was small or longitudinal, the reinforcement ratio was large, and small eccentricity failure occurred. The results were similar to the failure mode of ordinary concrete columns with traditional steel bars. When the load eccentricity decreased, the bearing capacity increased, but the deflection and ductility of the specimen decreased. When the strength of the longitudinal reinforcement increased, the bearing capacity of the specimen increased slightly. Finally, according to current design methods in the concrete structure design code, the bearing capacity of the eccentric compressive column was obtained, and the calculated results were compared with the experimental results to verify the applicability of the concrete structure design code GB50010-2010 to concrete columns with grade 735 MPa reinforcement.https://www.mdpi.com/2075-5309/13/1/188concrete columngrade 735 MPa steel bareccentric compressive performanceaxial compressive performancebearing capacity |
| spellingShingle | Xiao Zhang Yijing Ding Xuekun Wang Lele Sun Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars Buildings concrete column grade 735 MPa steel bar eccentric compressive performance axial compressive performance bearing capacity |
| title | Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars |
| title_full | Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars |
| title_fullStr | Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars |
| title_full_unstemmed | Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars |
| title_short | Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars |
| title_sort | study on eccentric compressive behavior of concrete columns reinforced with npr735 high strength steel bars |
| topic | concrete column grade 735 MPa steel bar eccentric compressive performance axial compressive performance bearing capacity |
| url | https://www.mdpi.com/2075-5309/13/1/188 |
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