互通式立体交叉设计阶段的数据交互研究与应用

Study and application of data interaction in interchange design stage

为解决互通立交设计过程中不同专业之间数据流通不畅、协同设计程度低等问题,实现互通立交设计阶段的线形设计与结构计算之间的数据交互,以LISP语言作为媒介,对VB程序与互通立交EICAD设计系统程序的交互作用进行研究;通过图元非几何属性的扩展和外部数据库的建立等方式进行互通立交的EICAD线形设计软件的二次开发;最后,以彰武东互通立交项目为例验证了软件二次开发的有效性.结果表明:VB与LISP语言相结合可有效解决程序间的内嵌融合问题;VB数据交换程序能够实现线形设计软件EICAD与结构计算软件MIDAS之间的数据循环流通,解决互通立交设计阶段中不同专业间的数据交互问题;软件的二次开发在互通立交实际项目中的应用具有较好的有效性.

In order to solve the problems of poor data circulation and low degree of collaborative design among different professions in the design process of interchange and to establish data interaction between linear design and structural calculation during interchange design period,the interaction between the VB programs and the EICAD design system program was studied by using LISP language as developing tool.The secondary development of the EICAD line design software for interworking was carried out through the extension of the non-geometric attributes of primitives and the establishment of an external database.Finally,the significance of software secondary development was verified by the Zhang-wu east interchange project.The results show that the combination of VB and LISP languages can effectively solve the problem of interactive fusion between programs.By VB data exchange program,a favorable data circulation between linear design software EICAD and structural calculation software MIDAS was realized,which can solve poor data interaction between different professions in the design phase of interchange.The application of the secondary development of software exhibits an effectivity in actual interchange project.