Abstract: As a widely used natural curve type, catenary has proved its good performance in all application areas, but has not applied to the design of arch dam yet. Therefore, based on the well developed arch dam system, by referring to the design method of arch dams with common axis and using computer aided design, we tried to use catenary as the axis type to establish the design method and theory of a new type of arch dams, which would enrich the concrete arch dam system.

Key words: arch dam, arch axis, catenary, design method

摘要： 悬链线作为一种应用非常广泛的自然曲线，在所应用的各个领域均表现出良好的效果，但迄今为止尚未运用于拱坝设计中。因此，基于已发展成熟的拱坝体系，参照常见拱轴线的拱坝设计方法，采用计算机辅助设计的手段，尝试将悬链线作为拱轴线的曲线型式，进而形成以悬链线为拱轴线的新型拱坝型式的设计方法及理论，从而丰富和发展了混凝土拱坝的体系。

关键词: 拱坝, 拱轴线, 悬链线, 设计方法