- 吕 铎1，刘佳龙2，郭昭胜3，安增军4,5，戴 亚4,5
引用本文摘 要：利用ABAQUS 有限元分析软件建立了PHC600 B-130管桩桩身横向受剪数值分析模型，分析了不同轴向拉力对空芯管桩和填芯管桩桩身抗剪承载性能的影响。结果表明，随着轴向拉力的增大，两类管桩桩身的开裂剪力和极限剪力均明显降低，相应的极限位移也有降低，桩身延性下降，填芯混凝土对于管桩桩身抗剪承载力的提高效果显著。基于规范和前人研究成果，结合数值分析数据，提出了考虑轴拉力影响的空芯管桩和填芯管桩的抗剪承载力计算公式。 Abstract: Using ABAQUS finite element analysis software, the numerical analysis model of PHC600 B-130 pipe lateral shear was established, and the influence of different axial tension on the shear bearing performance of hollow pipes and core-filled pipes was analyzed. The results show that with the increase of axial tension, the cracking shear force and ultimate shear force of the two types of pipes are significantly reduced, the corresponding ultimate displacement is also reduced, and the ductility of the pipe is decreased, and the core-filled concrete has a significant effect on improving the shear bearing capacity of pipes. Based on the specifications and previous research results, combined with numerical analysis datas, the shear bearing capacity calculation formulas of hollow pipe and core-filled pipe considering the influence of axial tension are put forward.
吕铎,刘佳龙,郭昭胜,等. PHC管桩拉-剪承载性能数值分析[J].混凝土与水泥制品,2020(12):30-35. LYU D,LIU J L,GUO Z S,et al. Numerical Analysis of Tensile-shear Bearing Performance of PHC Pipes[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):30-35.