摘要
为了研究双层高强螺旋箍筋约束混凝土柱的轴压力学性能,在国内外学者对约束混凝土研究的基础上,根据试验研究结果,模拟出双层高强螺旋箍筋约束混凝土圆柱的有限元模型,进而对高强螺旋箍筋和混凝土进行受力分析。研究结果表明:模拟与试验结果吻合较好,双层高强螺旋箍筋能有效约束钢筋混凝土的横向变形,对提高钢筋混凝土圆柱的极限承载力和延性有明显效果,结果偏于安全。因此,可用于此类结构试件的非线性有限元分析。
In order to study the mechanical performance of the double-layered high-strength spiral stirrup confined con- crete circular colunms under axial compression load, the finite element model of a double-layered high-strength spiral stir- rup confined concrete circular column was simulated according to the test results, based on the domestic and oversea study of confined concrete. And then the mechanical performance of the high-strength spiral stirrup and concrete was ana- lyzed. The results indicate that the simulation results are in good agreement with the test results; the double-layered high- strength spiral stirrup can effectively restrain the horizontal deformation of the reinforced concrete, and furtherly improve the ultimate bearing capacity and ductility of the reinforced concrete columns; the results are within the safety range. Therefore, the model can be used in nonlinear finite element analysis of the double-layered high-strength spiral stirrup confined concrete circular columns.
出处
《水利与建筑工程学报》
2015年第4期141-145,共5页
Journal of Water Resources and Architectural Engineering
关键词
双层高强螺旋箍筋
混凝土
ABAQUS
圆柱
double-layered high-strength spiral stirrup
concrete
ABAQUS
circular colunm
