Abstract: In proceeding the design of the large-spanned continuous girder bridge, we met the inner force calculation problem in building the temporary piers. In the practical work we have to obtain the solution of the binary third-degree equation again and again for many times. This is a comparatively complicated calculation problem. This paper attempts to have some explorations of this problem. We make use of the program type computer to solve this problem with good results. This paper pays special emphasis on the solution of the binary third-degree equation. This solution is unique. It opens a new way to solve the similar non-linear and non-heterogenous equations.

摘要： 在进行大跨径顶推连续梁设计时曾遇到临时墩水平拉索内力计算问题。在实际工作中为此要多次反复求解二元三次方程组。这是一个较为复杂的计算问题。本文对此进行了一些探讨,并采用程序式计算器解决这一问题效果良好,文中重点介绍二元三次方程组解法。这一解法较独特,它也为类似的非线性非齐次方程组的求解提供了新的途径