论文部分内容阅读
本文在试验研究的基础上分析了钢筋砼简支开洞深梁在顶部集中荷载作用下的工作性能和破坏形态,给出了相应的破坏机构。假定钢筋和砼均为刚塑性材料,引用砼双向受压的破坏条件求出了剪切破坏面受剪承戴力的塑性解,并进而求出各种破坏机构对应的受剪承载力公式,提出了按塑性极限分析计算开洞深梁受剪承载力的方法,计算结果怀国内外试验资料符合均较好。
Based on the experimental study, this paper analyzes the working performance and failure modes of the deep beams of simply supported and reinforced concrete beams under the action of the top concentrated load, and gives the corresponding damage mechanism. Assuming that both steel and concrete are rigid plastic materials, the plastic solution of the shear-through-putting force of the shear failure surface is obtained by referring to the damage conditions of the biaxial compression, and then the corresponding shear capacity formulas of the various failure mechanisms are obtained. A method for calculating the shear bearing capacity of deep beams with openings was proposed based on plastic limit analysis. The calculated results were consistent with domestic and foreign test data.