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文献[1]提出了中值系数法,将混凝土徐变积分方程式简化为代数方程式。本文通过对混凝土的松弛问题,用数值方法解积分方程求得中值系数值。然后,按同样方法求得钢筋混凝土轴压构件内力重分布问题的中值系数值。比较结果表明,两者非常一致。因此可作为一般混凝土徐变问题的中值系数值。
The literature [1] proposed the median coefficient method to simplify the concrete creep integral equation to an algebraic equation. In this paper, through the relaxation problem of concrete, the value of the median coefficient is obtained by solving the integral equation numerically. Then, according to the same method, the median coefficient value of the internal force redistribution of reinforced concrete axial compression members was obtained. The comparison shows that the two are very consistent. Therefore, it can be used as the median coefficient value for general creep problems of concrete.