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本文分析了钢筋混凝土深梁（ｌ／ｈ≤２）、短梁（ｌ／ｈ＝２～５）和浅梁（ｌ／ｈ＞５）的受剪机理和破坏特点，提出了考虑深梁、短梁和浅梁受力特点的桁架拱受力模型，引用混凝土在双向应力状态下的强度准则求出了考虑剪跨比、跨高比、垂直腹筋和水平腹筋影响的受剪承载力计算公式。通过简化分析给出了钢筋混凝土深梁、短梁和浅梁受剪承载力的实用统一计算公式，该公式与试验结果符合良好，并能与现行规范ＧＢＪ１０－８９中深梁和浅梁受剪承载力公式衔接。
This paper analyzes the shear mechanism and failure characteristics of reinforced concrete deep beams (l/h≤2), short beams (l/h=2~5) and shallow beams (l/h>5), and proposes the consideration of deep beams, The force model of the trussed arches with short beam and shallow beam was used to calculate the shear capacity calculation formula considering shear ratio, cross-height ratio, vertical web reinforcement and horizontal web reinforcement under the condition of biaxial stress. A practical unified formula for the shear capacity of reinforced concrete deep beams, short beams and shallow beams is given by simplified analysis. The formula is in good agreement with the test results and can be sheared with deep beams and shallow beams in the current specification GBJ10-89. The bearing capacity formula is connected.