See reply in red below
@stephenchengBZECT wrote:
I agreed that at the building level, those tiny stuff like bolt and nut would not deserve to present in details.
[RDAOU] Detail levels in BIM and fabrication models are two different worlds. While fabrication requires detailing components down to the tiniest thread, in BIM it may neither be necessary nor required to model the geometry of such components, even in an LOD 400+ model. This is especially true for bolts and small parts in plants and equipment.
But on the other hand, the mechanical strength of bolt and nut could contribute to the integrity of some MEP equipment that the quality of such bolt and nut might cause safety issue.
If the bolt and nut even do not present as generic BIM object in a Revit model, then how could the building project team members know where these stuff are located in the MEP equipment and then point to them to know their detail in order to understand their quality in terms of mechanical strength for safety.[RDAOU] When producing fabrication models is not a requirement, such components are handled on a case by case bases to provide sufficant information to other parties who will be carrying out the fabrication/manufacturing order. Hence, in addition to detail components and callouts,
- some include them in parameters/data sets
- other use tools & plugin similar to
- Sec Editor in Plant 3D,
- BUILD Specification which was recently added to the cloud services
- other 3rd party plugins and/or applications such as e-SPEC or SPECLink for RIB itwo
Provide my above assumption is correct, then there seems to be some commonly recognized item abbreviations for bolt and nut so when someone wants to review the overall MEP equipment revit model then he know which is nut and bolt and look into them.
[RDAOU] If the screws, bolts, nuts, or other small parts you are referring to are those of the structural platforms/decks hosting plant equipment and/or other components supplementing mechanical installations, these are mostly modeled as structural components. These components can be detailed further using the tools under the Steel tab. Among these tools are fabrication elements such as bolts and welds. You can define the type of bolts, grade, assembly, location, type of holes, etc. These are schedulable 3D components with an acceptable graphic representation. While not as detailed as they would be if modeled in Fusion or SolidWorks, they are sufficient with the defined parameters to issue a fabrication order to a manufacturer or subcontractor.
