钢砼组合梁竖向抗剪承载力的试验研究

Study on Vertical Shear Strenth of Steel-concrete Composite Beams

在6根钢 火山渣砼简支组合梁和6根钢 火山渣砼连续组合梁试验的基础上 ,探讨影响组合梁竖向抗剪承载力的主要因素 :混凝土翼板、名义剪跨比和力比等。试验与计算结果表明 ,在计算组合梁竖向抗剪承载力时 ,如果不考虑混凝土翼板的作用计算结果将趋于保守 ,对于连续组合梁还应该考虑弯矩比的影响。

On the basis of tests of 6 simply supported and 6 continuous steel slag-concrete composite beams,main factors for the vertical shear strength of steel slag-concrete composite beams such as the concrete slab,nominal shear span ratio,force ratio and so on are discussed.Results of tests and calculations show that it is conservative neglecting the influence of the concrete slab when calculating the vertical shear strength of steel slag-concrete composite beams,bend moment ratio should be considered for continuous composite beams.