摘要
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。
This article makes the research on the experimental and finite element analysis of the shear behavior of a hexagon hole cellular beam and a cellular composite beam under different parameters. Based on the experimental study, a non-linear finite element model is established on the basis of finite element software, ABAQUS. We carry out the analysis and comparison on the cellular beam and cellular composite beam of different opening rates, flange width and thickness. It was found that the shear resistance of a cellular beam and a cellular composite beam is related to their flange thickness, opening rates and connection degrees. The results show that： the flange thickness variation of a cellular beam has a greater effect on shear resistance, while the flange thickness variation of a cellular composite beam has a smaller effect on shear behavior; concrete slab improves the ultimate shear resistance of a cellular beam. Finally, we propose a calculation formula for the shearing force of a cellular beam and a cellular composite beam.
出处
《工程力学》
EI
CSCD
北大核心
2016年第1期81-87,132,共8页
Engineering Mechanics
基金
国家自然科学基金项目(51578346)
辽宁省自然科学基金项目(201102176)
关键词
蜂窝梁
蜂窝组合梁
有限元
抗剪承载力
开孔率
cellular beam
cellular composite beam
finite element
shear resistance
opening rates
