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严格良好的桥梁数据组织可以辅助桥梁设计实现更加深入的设计重用。文章通过定义桥梁设计特征、桥梁设计特征空间,形成了桥梁特征之间的映射关系,并建立了基于特征的桥梁数据组织。进一步以桥梁构件为基本单位,建立了基于特征的桥梁信息模型,模型中定义了每个构件的几何信息和各种工程设计参数和属性,建立起构件几何图形与信息实体的一一对应关系,实现了图形和描述桥梁信息模型的数据之间的双向链接,为桥梁设计绘图软件大规模的设计重用需求提供有效的解决方案。
Strict good bridge data organization can assist the bridge design to achieve more in-depth design reuse. By defining the bridge design features and the bridge design feature space, the article forms the mapping relationship between the bridge features and establishes the bridge data organization based on the features. Based on the bridge component as the basic unit, a bridge-based information model is established. The model defines the geometric information of each component and various engineering design parameters and attributes, and establishes the one-to-one correspondence between the component geometry and the information entity. The two-way link between the graphics and the data describing the bridge information model is realized, which provides an effective solution to the large-scale design reuse requirements of the bridge design drawing software.