![]() Indeed some of these elaborations, which are often produced downstream, can have a greater influence on the design choices if one has the possibility of keeping them "hooked" to the model even during the compositional phases. They could also find space in the project tables, but if they are in an A4 format report, always within the program (or in any case with dynamic links), nothing changes. The tables do not store lines and fills detached from the model, but the coordinates of where and how to produce these "slices" of the model.įor drawings this is now a rather common practice, but as it can be done with the views of the virtual building, the same can also apply to drawings always derived from it, but with a tabular representation, such as an abacus of the windows, a metric calculation, an energy simulation. In practice, the software "slices" the 3D model several times horizontally for the plans of the various floors, vertically for the sections and from the outside for the elevations. Obviously this does not happen if it is possible to maintain a dynamic link between the model and its various paginated representations on the tables, for example if the program in use has a dedicated page layout module capable of automatically updating the drawings according to the changes made to the model. If you forget to "update" one of the drawings you get an error. ![]() If a last-minute modification occurs in this, all the documents involved in this modification must be re-exported and rearranged in the layout defined previously. If plans, elevations and sections are exported from the BIM model as two-dimensional drawings to layout them in another program dedicated to graphics, it is evident that the connection with the source model is lost. Returning for a moment to the project tables, when we talk about BIM they seem like things that are taken for granted, but the example is useful for thinking about the design process. The closer is the relationship between the BIM model and the elaborates derived from it, the less is the possibility of errors and inconsistencies between the different parts of the project. which are project drawings not represented with a 3D geometric model, but are based on data (primarily dimensional) provided by the BIM model. ![]() These tools can organize various information associated with the individual constituent elements and can also coordinate other contributions that are not strictly BIM, that is, that do not produce informed 3D models, but rather diagrams, tables and other graphics or not.Įven the project tables themselves are not exactly BIM elements: plans, elevations and sections are derivatives of the virtual model that are obtained more or less automatically from the 3D model and perhaps paginated together with construction details, structural diagrams, energy simulations, window schedules, etc. All disciplines that base the project on a virtual three-dimensional geometric model that faithfully represents what the real artifact will be. The so-called BIM Authoring tools for the construction industry range mainly in the fields of architectural, structural, plant and infrastructural design. A BIM Authoring tool is a 3D design software that organizes the model by objects, attributes and relationships.
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