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基于复杂受力下钢筋混凝土构件的受力相关性,以弯扭相关性作为连接剪扭相关性和压弯相关性的桥梁,推导了钢筋混凝土构件承载力计算的统一计算式,考虑了压弯剪扭四种受力状态的受力相关性。由该计算式推得的单一受力和复合受力状态下的承载力计算式与国内外试验数据符合较好,计算式不仅适用于所有单一受力状态下的承载力计算,还适用于压弯、剪扭、弯扭、弯剪和压剪5个两相关计算,弯剪扭、压弯剪三相关计算以及压弯剪扭四相关计算。按统一计算式得到的配筋量比GB 50010—2002《混凝土结构设计规范》的配筋量更为合理,且计算结果与试验结果吻合较好。
Based on the force relativity of reinforced concrete members under complicated forces and with the relation between bending and torsion as the bridge connecting shear and torsion and the relationship between bending and bending, a unified formula for calculating bearing capacity of reinforced concrete members is deduced. Shear torsion force of four states of stress-related. The calculation formula of the bearing capacity under the single force and composite stress state deduced by the calculation formula is in good agreement with the test data at home and abroad. The calculation formula is not only applicable to the calculation of bearing capacity under all single stress states but also applicable to the compression Bending, twisting, bending and twisting, bending and shear five five related calculations, bending shear torsion, bending and bending shear correlation calculation of three and bending shear torsion four correlation calculations. According to the uniform formula, the amount of reinforcement is more reasonable than the amount of reinforcement in GB 50010-2002 “Code for Design of Concrete Structures”, and the calculation results are in good agreement with the test results.