Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement
The additional fixed-end rotation resulting from the strain penetration of longitudinal reinforcement in a reinforced concrete beam-column connection is a crucial factor for the plastic hinge rotation capacity. When it comes to high-strength reinforcement, the effects of strain penetration on fixed-...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9127167 |
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| author | Ling Li Wenzhong Zheng Ying Wang Junke Ma |
| author_facet | Ling Li Wenzhong Zheng Ying Wang Junke Ma |
| author_sort | Ling Li |
| collection | DOAJ |
| description | The additional fixed-end rotation resulting from the strain penetration of longitudinal reinforcement in a reinforced concrete beam-column connection is a crucial factor for the plastic hinge rotation capacity. When it comes to high-strength reinforcement, the effects of strain penetration on fixed-end rotation become more obvious because of the increase in yield strength. In this study, 42 beam-column connections with high-strength hot rolled ribbed bars were designed and tested under monotonic loading at the beam end. The test results show that the rebar strains gradually decrease from the critical section towards the beam-column connection, thereby proving the existence of strain penetration in the beam-column connection. The slippage of the embedment reinforcement at the beam-column interface and additional fixed-end rotations were obtained from the test results. In addition, a parametric study involving the yield strength and diameter of reinforcement, concrete tensile strength, and embedment length in the beam-column connection was performed to investigate the effects of various parameters on the additional fixed-end rotation. Finally, a new simple and practical calculation model for predicting the additional fixed-end rotation was proposed. The prediction shows good agreement with the experimental results. |
| format | Article |
| id | doaj-art-8e7bdd545351498e85683fee5a765df1 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-8e7bdd545351498e85683fee5a765df12025-02-03T01:28:50ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/91271679127167Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength ReinforcementLing Li0Wenzhong Zheng1Ying Wang2Junke Ma3School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaThe additional fixed-end rotation resulting from the strain penetration of longitudinal reinforcement in a reinforced concrete beam-column connection is a crucial factor for the plastic hinge rotation capacity. When it comes to high-strength reinforcement, the effects of strain penetration on fixed-end rotation become more obvious because of the increase in yield strength. In this study, 42 beam-column connections with high-strength hot rolled ribbed bars were designed and tested under monotonic loading at the beam end. The test results show that the rebar strains gradually decrease from the critical section towards the beam-column connection, thereby proving the existence of strain penetration in the beam-column connection. The slippage of the embedment reinforcement at the beam-column interface and additional fixed-end rotations were obtained from the test results. In addition, a parametric study involving the yield strength and diameter of reinforcement, concrete tensile strength, and embedment length in the beam-column connection was performed to investigate the effects of various parameters on the additional fixed-end rotation. Finally, a new simple and practical calculation model for predicting the additional fixed-end rotation was proposed. The prediction shows good agreement with the experimental results.http://dx.doi.org/10.1155/2018/9127167 |
| spellingShingle | Ling Li Wenzhong Zheng Ying Wang Junke Ma Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement Advances in Materials Science and Engineering |
| title | Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement |
| title_full | Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement |
| title_fullStr | Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement |
| title_full_unstemmed | Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement |
| title_short | Experimental Study on Strain Penetration Effects in Fixed-End Rotation of RC Beam-Column Connections with High-Strength Reinforcement |
| title_sort | experimental study on strain penetration effects in fixed end rotation of rc beam column connections with high strength reinforcement |
| url | http://dx.doi.org/10.1155/2018/9127167 |
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