Differences between the two types of modeling
The key difference between simple 3D design and BIM is that creating a digital model is not drawing, but structural modeling with the formation of documentation and an array of attributes for each element. The 3D information model of the object allows you to upload ready-made drawings and receive data with the parameters and properties of the components. The customer receives a visual image and full attributes of all elements of the object with drawings and specifications.
A high level of automation of the process ensures automatic recalculation of the entire 3D information model when any element is changed. Drawings and specifications are also changing. Any adjustment entails changes in the entire system.
Number of dimensions
Full digital detailing of the 3d information model is a guarantee of minimizing errors. Ideally, there are none at all. For example, when resizing any element, inconsistencies will be immediately visible. But the potential of BIM-technology makes it possible to develop a 3D digital model in 4, 5 and 6 dimensions:
- 4D – time calculations and work schedules for creating a real object are added to the model.
- 5D – a virtual object with a financial component and estimates.
- 6D is a complete digital twin of a real object with a reflection of all its life cycles, including operation, reconstruction and demolition.
A 3D information model can be created with 4D and 5D elements.
The digital image is obtained as a result of the work of a team of specialists. When creating a three-dimensional information model, all sides of the process work in one digital space, which allows the architect, designer, engineering staff, performers and control bodies to communicate with each other. All technical documentation is concentrated in one place. At the same time, the principle of differentiation is laid down in the model, when each participant of the project sees the layer that he needs.
Is it worth using BIM technologies?
Some of the members of the construction community continue to be skeptical about BIM projects due to the high cost of services. But in the future, such expenses will be justified and compensated by saving on eliminating errors already at the construction stage.