混凝土拱坝设计规范规定拱坝应力计算以“拱梁分载法”为主,目前“拱梁分载法”有多拱梁法、拱冠梁法两种方法。多拱梁法具有较高精度,但都需要大容量、高速度的计算机,所以程序很少,应用不方便。拱冠梁法在普通微机甚至袖珍机上就可完成,所以数量较多。这种方法又可分为考虑扭转作用的转换参数法及传统径向调整拱冠梁法,转换参数法常以延长坝高法考虑地基变位影响,以当量水压替代均匀温变荷载,不计线性温变荷载,这将影响计算精度, The design code of concrete arch dam stipulates that the stress calculation of arch dams should be based on the “arch and beam load sharing method”. At present, the “arch and beam division method” has two methods: multi-arch beam method and arch crown beam method. The multi-arch beam method has high accuracy, but all require a large-capacity, high-speed computer, so the program is very few and the application is inconvenient. The crown and beam method can be completed on ordinary microcomputers or even pocket machines, so the number is large. This method can be further divided into the conversion parameter method considering the torsion effect and the traditional radial adjustment arch crown beam method. The conversion parameter method is often used to extend the dam height method to consider the influence of ground displacement, and the equivalent water pressure is used to replace the uniform temperature change load. Linear temperature-varying loads, which will affect the calculation accuracy,