Design firms leverage the powerful 3D visualization, multidisciplinary collaborative design, and precise information-sharing capabilities unique to BIM to significantly enhance design quality. These advantages help prevent errors and clashes during the design process, reduce design revisions, increase efficiency, and strengthen the core competitiveness of surveying and design companies. In bridge construction, the primary applications of BIM technology by design teams include:
① 3D parametric design;
② Multidisciplinary collaborative design;
③ Performance-based analysis using BIM;
④ Drawing verification and engineering quantity estimation.
Currently, many leading design firms are actively exploring BIM design technology for bridges and other engineering projects. When compared to traditional 2D drafting, BIM-based 3D design offers clear advantages. Complex spatial relationships among bridge components are difficult to represent accurately in 2D. BIM enables clear visualization of these spatial relationships, helping to avoid clashes and conflicts between components.
For example, during the design of a bridge on the Sierra Leone Highway, Beijing Jiaotong University utilized BIM technology to perform 3D inspection and visualization of design outputs alongside 2D drawing production. The results demonstrated that BIM-based bridge design greatly improved the efficiency and quality of producing construction drawings, thereby boosting overall design productivity and ensuring high design standards.
Taking advantage of BIM’s platform, 3D collaborative design across multiple disciplines was achieved during the design phase. Unlike previous sequential design methods, this approach allows simultaneous work by various disciplines, significantly improving design speed. However, the industry still lacks a standardized and unified design workflow for BIM implementation.
Regarding structural stress analysis of bridges, traditional methods involved independent finite element analysis (FEA) software separate from the graphical model. Progress is being made toward shared interfaces between finite element tools like Abaqus, Ansys, Midas, and BIM software, allowing BIM models to be directly used for structural analysis. This integration saves time in creating analysis models. Nonetheless, data sharing workflows for structural analysis are still in early development stages, requiring further research before widespread mature application is possible.
Must log in before commenting!
Sign Up