文[1]依弹性基础上无限长梁理论,推证了轨道强度特殊问题的静力计算公式,表明用连续支承理论可以解算轨道强度的特殊问题,但由于采用了一个近似假定文[1]稍逊完美。本文抛弃了这个近似假定,通过微分方程求解,理论上的说服力较强。由示例的计算表明所提出的公式是行之有效的,因而本文是[1]的姊妹篇。它们说明连续支承理论在轨道强度的计算中与点支承理论一样具有同等的价值和效用。 According to the theory of infinite beam on the basis of elasticity, the paper deduces the static formula of the special problem of orbit intensity, which shows that the problem of orbit intensity can be solved by the theory of continuous support. However, Less perfect. This article abandons this approximate assumption, through the differential equation solution, the theory is more convincing. The example calculation shows that the proposed formula is effective, so this article is a companion to [1]. They show that the theory of continuous support has the same value and utility as the point support theory in the calculation of orbit intensity.