不同掺量钢纤维自密实混凝土梁的抗弯性能有限元分析
On Flexural Behavior of Steel Fiber Reinforced Self-Compacting Concrete Beam of Different Admixture Amounts with Finite Element Analysis
-
摘要: 根据理论计算与试配获得了不同掺量的钢纤维自密实混凝土配合比，由混凝土力学性能试验得到各配合比下混凝土的力学性能指标，并以实测材料参数为依据，通过ANSYS有限元模型，分析不同钢纤维掺量的钢筋自密实混凝土梁的抗弯性能及裂缝分布，并找到最佳钢纤维自密实混凝土配合比，为工程实践提供参考。计算结果表明，掺钢纤维的钢筋自密实混凝土梁，其开裂荷载、屈服荷载、弯曲韧性及结构刚度与普通钢筋自密实混凝土梁相比得到提升，并且实际极限荷载也能得到相应改善。
-
关键词:
- 桥梁工程 /
- 抗弯性能 /
- ANSYS /
- 钢筋钢纤维自密实混凝土梁
Abstract: According to the theoretical calculations and the test results ,the different mixture ratio of steel fiber reinforced self‐compacting concrete has been found in this paper .Based on the results of the concrete mechanics performance test ,through ANSYS finite element analysis the paper gets the results of steel fi‐ber reinforced self‐compacting concrete beams bending performance and fracture distribution with different mixing amount of fiber ,and the best mixture ratio of steel fiber reinforced self‐compacting concrete is found .It can provide a reference for the practical engineering .The calculation of model shows that the cracking load ,yielding load ,flexural toughness and structure stiffness of steel fiber reinforced self‐com‐pacting concrete beams are significantly increased compared with ordinary reinforced self‐compacting con‐crete beams .And it can be reasonably extrapolated that the actual ultimate load also be improved accord‐ingly . -
-
计量
- 文章访问数: 411
- HTML全文浏览数: 181
- PDF下载数: 0
- 施引文献: 0
下载: