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均布荷载作用下,锈蚀钢骨混凝土梁轴力与交接面的剪力体现了钢骨与混凝土之间的粘结性能,两者都是影响梁承载能力的重要因素。利用弹性理论,结合锈蚀钢骨混凝土梁的受力特征,建立了考虑钢骨锈蚀率影响的轴力微分方程,给出了均布荷载下轴力与交接面剪力的计算公式。计算结果表明,均布荷载作用下轴力与交接面剪力随着钢骨锈蚀率的增加而减小,随着荷载的增大而增大,且钢骨锈蚀率越大,轴力与交接面剪力下降的也就越快。
Under the action of uniform load, the axial force and the shearing force at the interface of the corroded steel reinforced concrete beam reflect the bond between the steel and the concrete, both of which are important factors that affect the bearing capacity of the beam. Based on the theory of elasticity and the mechanical characteristics of corroded steel reinforced concrete beams, the differential equation of axial force considering the influence of steel corrosion rate is established. The formulas of axial force and interface shear force under uniform load are given. The calculated results show that the axial force and the shear force at the interface decrease with the increase of the corrosion rate of steel under uniform load, increase with the increase of load and the corrosion rate of steel increases with the increase of axial force and transfer Surface shear decreases faster.