以往城市桥梁设计中 ,较少采用单孔刚构桥 ,但在地形、防洪、造价和桥梁景观等诸多限制条件下 ,单孔刚构桥型又以自身各项优点成为首选方案。本文以遵义市碧云大桥设计为例 ,探讨了该种桥型在设计和施工方式选择过程中的若干问题 ,以使该种桥型成为城市桥梁设计中一种较好的选择 In the past, fewer rigid-framed bridges were used in the design of urban bridges. However, under the limitations of topography, flood control, cost and bridge landscape, the single-framed rigid-framed bridges became their first choice with their own advantages. In this paper, the design of Piyun Bridge in Zunyi City is taken as an example to discuss some problems in the selection and design of this type of bridge so as to make the kind of bridge become a better choice in the design of urban bridges