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Structural Engineering and Mechanics Volume 67, Number 1, July10 2018 , pages 93-104 DOI: https://doi.org/10.12989/sem.2018.67.1.093 |
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Seismic performance of RC short columns with light transverse reinforcement |
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Cao Thanh Ngoc Tran and Bing Li
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| Abstract | ||
| The seismic behavior of reinforced concrete (RC) short columns with limited transverse reinforcement is investigated in this paper through an experimental program. The experimental program consists of four small-scale RC columns with an aspect ratio of 1.7, which are tested to the axial failure stage. The cracking patterns, hysteretic responses, strains in reinforcing bars, displacement decomposition and cumulative energy dissipation of the tested specimens are reported in detail in the paper. The effects of column axial load are investigated to determine how this variable might influence the performance of the short columns with limited transverse reinforcement. Brittle shear failure was observed in all tested specimens. Beneficial and detrimental effects on the shear strength and drift ratio at axial failure of the test specimens due to the column axial load are found in the experimental program, respectively. | ||
| Key Words | ||
| reinforced concrete; short column; light transverse reinforcement; column axial load; drift ratio at axial failure | ||
| Address | ||
| Cao Thanh Ngoc Tran: Department of Civil Engineering, International University, Vietnam National University, Hochiminh, Vietnam Bing Li: School of Civil and Environment Engineering, Nanyang Technological University, 639798, Singapore | ||