In order to solve the problems of corrosion,rust,and deterioration of reinforced concrete in the use of partially wrapped concrete composite beams,this paper presents a structural form for aluminum alloy-concrete composite beams.A finite element model is established to analyze the variation law of the shear bearing capacity of aluminum alloy-concrete composite beams with different parameters.The stress transfer path of concrete is obtained by the improved tension compression rod calculation model.And by the superposition method,a formula for calculating the shear bearing capacity of aluminum alloy-concrete composite beams is developed considering the contribution of aluminum alloy beam web plate and abdominal concrete to shear strength.It is found that the average value of the ratio of the calculated value obtained by the formula to the finite element value is 1.018,and the standard deviation σ is 0.151,indicating that the calculation formula is small in discreteness and feasible.This study can provide theoretical reference for related research.
关键词
铝合金结构/铝合金-混凝土组合梁/抗剪承载力/改进拉压杆模型
Key words
aluminum alloy construction/aluminum alloy-concrete composite beam/shear bearing capacity/improved strut and tie model
万方数据