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无腹筋梁剪切强度试验数据虽然不少,但影响梁的剪切强度因素众多,单独研究纵筋率对钢筋混凝土梁剪切强度影响的试验数据不但不足且存在偏差。所以使用数据过滤的方法对最新文献全面收集的无腹筋矩形梁在集中荷载下的剪切试验数据进行过滤,从而减小数据缺失或偏差和其他因素对分析结果的影响,进而得到纵向配筋率对梁的剪切强度影响规律,提出考虑纵筋率影响的钢筋混凝土无腹筋梁剪切强度计算公式。
Although there are a lot of test data on the shear strength of non-reinforced web beams, there are many factors affecting the shear strength of the webs. Not only the experimental data on the influence of longitudinal reinforcement rate on the shear strength of reinforced concrete beams is not only inadequate and there are deviations. Therefore, the method of data filtering is used to filter the shear test data collected by the most recent literatures of non-web-shaped rectangular beams under concentrated load, so as to reduce the influence of data deletion or deviation and other factors on the analysis results and obtain the longitudinal reinforcement ratio On the shear strength of beams, the formula for calculating the shear strength of reinforced concrete without web reinforcement considering the effect of longitudinal reinforcement is proposed.