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用奇异函数法导出了实体三铰拱在复杂载荷作用下内力的解析解,与传统的数解法相比,由于用统一的解析式表达内力,便于编程计算,也便于根据已知外载情况合理地设计拱轴⒚“,”This paper presents analytical solutions of internal forces of a solid three hinged arch subjected to complex loadings by a singular function method. Compared with the traditional numerical method, the present solutions provide a convenience of programming and designing reasonable arch axes under known loading.