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Experimental and Nonlinear Numerical Analysis of Precast Concrete Column Splices with High-Yield Metal Plates
| 题名： | Experimental and Nonlinear Numerical Analysis of Precast Concrete Column Splices with High-Yield Metal Plates |
| 正文语种： | 英文 |
| 作者： | J. D. Nzabonimpa1; Won-Kee Hong2 |
| 作者单位： | 1Postdoctoral Fellow, Dept. of Architectural Engineering, Kyung Hee Univ., Yongin 446-701, Korea. 2Professor, Dept. of Architectural Engineering, Kyung Hee Univ.,Yongin 446-701, Korea (corresponding author). |
| 关键词： | High-strength steel; High-strength bolts; Moment resisting column-column connection; Reinforced concrete precast frames; Extended end plates; Finite-element analysis; Detachable mechanical column joints; Detachable laminated plates |
| 摘要： | The aim of this study was to present the use of detachable laminated high-yield metal plates for precast concrete column splices. The structural behavior of precast concrete column connections with detachable high-yield-strength (650-MPa) plates with 1,000-MPa highstrength bolts was performed experimentally and numerically. A nonlinear numerical model based on concrete damaged plasticity was developed to evaluate the structural performance of the novel joint for precast concrete columns with fully restrained and partially restrained moment connections. The behavior of the proposed joint obtained numerically was in good agreement with the full-scale test data, offering accurate prediction of stresses and strains for the design of the mechanical column connections. Finally, the real-world behavior including strain evolution of the mechanical joints was understood by the strains of microscopic level obtained via the proposed numerical model. This study is expected to contribute to promoting the use of plates with high-yield strength, which possess the merits of bolted column-to-column splices, to implement mechanical joints in precast concrete assembly similar to how steel frames are assembled. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 2 |
| 页码： | 1-15 |
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