一、位移矩阵分配法的基本内容如所周知,多跨连拱在任意荷载(包括温度影响、桥台移动及桥墩沉陷等)作用下的求解问题,可归结为连拱在某一结点处受一力矩和一水平力作用的求解问题。即如果后者能解决,则前者也不难解决(参阅第二节末)。今就上述后一种情况进行研究。设n+1跨连拱于第(k)结点处受一力矩-f_(2k-1)和一水平力-f(2k)作用,如图1所示: First, the basic content of displacement matrix allocation method As we all know, multi-span arch in any load (including temperature effects, abutment movement and pier settlement, etc.) under the action of the problem, can be attributed to the arch in a node Solved by a moment and a horizontal force. That is, if the latter can be solved, the former is not hard to solve (see the end of the second section). This last case of the study. Let n +1 cross-arch at the (k) node by a moment-f_ (2k-1) and a horizontal force-f (2k) role, shown in Figure 1: