摘要
本文讨论了钢筋混凝土简支深梁的剪切破坏形态和主要影响因素,假定钢筋和混凝土均为刚塑性材料,引用混凝土双向受压的破坏条件,求出了集中和均布荷载作用下钢筋混凝土简支深梁受剪承载力的塑性解。根据试验结果给出了考虑混凝土强度和剪跨比影响的深梁混凝土塑性有效抗压系数,所获得的理论公式与国内外试验结果符合良好。
In this paper, based on the experimental results, the stress characteristics, the shear failure modes and the principle factors influncing shear capacity of simple supported R. C. deep beams under concentrated and uniform lood are discussed. Assuming that both reinforcement and concrete are rigid-plastic materials, using the failure criterion of concrete in biaxial compression, the plastic solution for shoar capacity of deep beams are obtainted. The effective compression factor ν of concrete in deep beams is also givcn. The strggested formulas predicting the shear capacity of deep beams show a good agrccment with tested results.
