The main reasons for the limited enthusiasm for BIM adoption in structural engineering are outlined below:
1. Managing “Two Models” Simultaneously Increases Workload. BIM design requires multiple disciplines to maintain consistent models throughout the design process. However, mainstream BIM software has yet to fully adapt to local structural calculation standards. As a result, structural engineers tend to rely on familiar calculation and analysis software rather than BIM tools. For example, using the Revit platform means structural engineers must learn new BIM modeling software to collaborate effectively, which adds to their workload. Many engineers feel that the effort spent creating Revit models offers limited benefits for their core tasks. Maintaining “two models” contradicts the fundamental BIM principle of having a single, unified model.
2. Low Efficiency in Producing Construction Drawings with BIM Software. Popular structural analysis software like PKPM and Yingjianke can directly import calculation results into their drawing modules, enabling a one-click generation of flat construction drawings. Although some review and edits are still necessary, this significantly saves time. Currently, BIM software such as Revit can produce flat drawings by adding shared parameters, but its usability remains unsatisfactory for structural engineers, resulting in lower efficiency when creating construction documents.
3. Challenges in Adapting to New Collaborative Design Processes. Traditionally, cross-disciplinary collaboration in structural design occurs at fixed milestones through a “capital raising” approach, and the structural design process itself tends to be quite isolated. BIM transforms this into a dynamic, real-time collaboration based on 3D models. However, designers are generally unfamiliar with implementing these new workflows and collaborative methods within BIM software. Established working practices under BIM are still lacking, and clear operational guidelines have yet to be developed.
4. Incomplete Structural Information within BIM Models. At its core, BIM relies heavily on comprehensive information. Currently, it is challenging to fully incorporate all preprocessing data and calculation results for structural engineering into BIM models. Hardware limitations also pose a problem: importing complex 3D elements like steel reinforcements can significantly slow down software performance and reduce display quality.
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