|
|
R-UHPC梁抗剪承载力有限元分析
|
Abstract:
为研究配筋超高性能混凝土(R-UHPC)梁的抗剪性能，结合6根不同钢纤维掺量和配箍率的R-UHPC梁受剪破坏试验，通过有限元参数分析，验证了极限荷载、纵筋应变、箍筋应变、开裂情况，得出剪跨比为1.2~2.8范围的R-UHPC梁抗剪承载力及变化规律。
In order to study the shear behavior of R-UHPC beams with reinforcements, combined with shear failure tests of 6 R-UHPC beams with different steel fiber content and reinforcement ratio, the ultimate load, longitudinal bar strain, stirrup strain and cracking were verified by finite element parameter analysis, and the shear bearing capacity and variation rule of R-UHPC beams with shear span ratio of 1.2~2.8 were obtained.
| [1] | 《中国公路学报》编辑部. 中国桥梁工程学术研究综述？2014 [J]. 中国公路学报, 2014, 27(5): 1-96.
https://doi.org/10.19721/j.cnki.1001-7372.2014.05.001 |
| [2] | Pourbaba, M., Joghataie, A. and Mirmiran, A. (2018) Shear Behavior of Ultra-High Performance Concrete. Construction and Building Materials, 183, 554-564. https://doi.org/10.1016/j.conbuildmat.2018.06.117 |
| [3] | 马恺泽, 马煜东, 邢国华, 刘伯权. 配筋超高性能混凝土梁受剪性能研究[J]. 建筑结构学报, 2022, 43(12): 179-188.
https://doi.org/10.14006/j.jzjgxb.2021.0471 |
| [4] | 金凌志, 周家亮, 李月霞, 曹霞, 付强. 高强钢筋活性粉末混凝土梁受剪性能试验研究[J]. 建筑结构学报, 2015, 36(S2): 277-285. https://doi.org/10.14006/j.jzjgxb.2015.S2.041 |
| [5] | 陈红波. 配筋超高性能混凝土短梁受剪性能研究[D]: [硕士学位论文]. 长沙: 湖南大学, 2014. |
| [6] | 陈宝春, 吴前文, 黄卿维, 马熙伦, 苏家战. 钢筋超高性能混凝土梁抗剪性能试验研究[J]. 福州大学学报(自然科学版), 2018, 46(4): 512-517. |
| [7] | 梁兴文, 王照耀. 基于改进修正压力场理论的超高性能混凝土梁受剪承载力分析[J]. 工业建筑, 2019(1): 6. |
| [8] | Voo, Y.L., Poon, W.K. and Foster, S.J. (2010) Shear Strength of Steel Fiber-Reinforced Ultrahigh-Performance Concrete Beams without Stirrups. Journal of Structural Engineering, 136, 1393-1400.
https://doi.org/10.1061/(ASCE)ST.1943-541X.0000234 |
