论文部分内容阅读
该文对不同参数下的正六边形孔蜂窝梁和蜂窝组合梁抗剪性能进行了试验与有限元分析研究。以试验研究为基础,基于有限元软件ABAQUS建立非线性有限元模型,对不同开孔率、不同翼缘宽度和厚度的蜂窝梁和蜂窝组合梁进行分析比较,发现蜂窝梁和蜂窝组合梁抗剪承载力大小与翼缘厚度、开孔率和连接程度均有关。结果表明:蜂窝梁翼缘厚度变化对其抗剪承载力影响较大,而蜂窝组合梁中翼缘厚度的变化对其抗剪性能影响相对较小;混凝土板提高了蜂窝梁的抗剪极限承载能力;最后,给出蜂窝梁和蜂窝组合梁抗剪计算公式。
In this paper, the shear performance of hexagonally-shaped honeycomb beam and honeycomb composite beam with different parameters under different parameters are tested and analyzed by finite element method. Based on the experimental study, the nonlinear finite element model was established based on the finite element software ABAQUS. The honeycomb beams and honeycomb composite beams with different hole ratios, different flange widths and thicknesses were analyzed and compared. It was found that the shear resistance of the honeycomb beams and honeycomb composite beams Bearing capacity and flange thickness, opening rate and the degree of connection are related. The results show that the variation of the thickness of the honeycomb beam flange has a great influence on the shear strength of the honeycomb beam, while the variation of the flange thickness in the honeycomb composite beam has a relatively small influence on the shear resistance. The concrete slab increases the ultimate shear capacity of the honeycomb beam. The formulas of shear resistance of honeycomb beams and honeycomb composite beams are given.