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在诸如变截面连续梁、连续拱、多跨连续桁架梁、桁架拱、拱桁以及斜拉桥等大跨径桥梁的设计计算中,目前广泛采用平面杆系矩阵位移法。国内不少单位编有这类程序,并在一系列高次超静定的大跨径桥梁设计中得到应用,取得良好效果。尽管平面杆系矩阵位移法的电算程序理论上可用于求解任意的可作为平面杆系处理的桥跨结构。但事实上对于特大跨径桥梁(例如跨径在300米以上的密束斜拉桥),在目前常用的电子计算机(如 DJS-6机,
In the design and calculation of long-span bridges such as continuous girder with variable cross sections, continuous arches, continuous truss girders with multi-span, truss arch, arch truss and cable-stayed bridges, the planar bar matrix displacement method is widely used. Many domestic units have compiled such programs and have been applied to a series of high-end statically indeterminate long span bridges with good results. Although the computational program of the planar bar matrix displacement method can theoretically be used to solve any bridge structure that can be treated as a planar bar system. However, in fact, for very large span bridges (for example, densely populated cable-stayed bridges with a span of more than 300 meters), in the currently used electronic computers (such as the DJS-6,