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一、纽玛克(Newmark)的数值解 求解弹性支承连续梁的方法颇多,其中许多都要涉及解多元一次方程组的问题。拉杆愈多,超静定次数愈高,手算愈困难,有时只能借助台式计算机甚至电子计算机才能完成。如果对《桥梁建设》1980年第4期中介绍的纽玛克数解法稍加改进,再用到这里,则不论拉杆有多少,都是一个解二元一次方程组的
A. Newmark’s Numerical Solution There are many ways to elastically support continuous beams, many of which involve the problem of solving multivariate linear equations. The more tie rods, the higher the number of statically indeterminate, the more difficult the hand count, sometimes only with the help of a desktop computer or even a computer to complete. If we slightly improve Newmark’s solution introduced in Bridge Construction, Issue 4, 1980, and use it again, then no matter how many tie rods are,