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顾翼鹰同志在土术工程4卷2期中发表了“求超静定杆件系统力矩定点的最简单公式”的一篇短文,举出了下面的求定点距离的公式:l_b(右定点距右端之距离)=-(1-γba)/(3-γba)l_0他认为这个公式是求定点位置的最简单公式。笔者觉得这样说法颇有问题,因为(1)这个公式只是近似式,不应该用来与精确式此繁简,(2)这个公式的精确度太差,在某些情形下是否可用尚
Comrade Gu Yiying published a short essay on “The simplest formula for determining the fixed point moments of the statically indeterminate rod system” in the Volume 4 of Geotechnical Engineering, and cited the following formula for determining the fixed point distance: l_b (right The distance from the right end of the fixed point)=-(1-γba)/(3-γba)l_0 He thinks this formula is the simplest formula for finding the location of a fixed point. I think this is quite a problem, because (1) this formula is only an approximation, it should not be used to simplify this complication, (2) the accuracy of this formula is too poor, in some cases is still available