Identifying and Resolving Issues

BIM for Architecture, Engineering, and Construction Curriculum


Reviewing and Marking Up

Who are some of the different audiences for whom we might want to focus our markups to the saved viewpoints?

Examples include owners, HVAC consultants, plumbing consultants, structural designers, and fire protection specialists.

For each of those different audiences, describe the types of viewpoints that would focus on their primary concerns.

For owners, views of project architectural features, both external and internal.

For HVAC consultants, views that show the interaction with the plumbing and electrical systems, and views of rooftops or utility rooms where equipment is typically located.

For plumbing consultants, views of the sanitary system, wall cross-sections, and views that show the interaction with HVAC and electrical systems.

For structural designers, views that show the interaction with the HVAC and plumbing systems.

Performing Clash Detection

Describe examples of standardized clash detection tests that might be saved and repeated across many projects.

Examples include sprinklers against HVAC ducts, HVAC ducts against structural framing, plumbing piping against HVAC ducts, or structural framing.

Should each discipline be responsible for clash testing its own model before contributing it to the model aggregator for cross-discipline testing?

Yes! Intra-model clashes, conflicts, and inconsistencies should be eliminated (or understood) before checking for conflicts with models created by other disciplines. 

What are the key advantages of automated clash detection of BIM models when compared to the traditional method of comparing paper documents?

Dramatically faster to perform and free of human error. Also, without the need for large light tables or being in a design office, project managers can perform clash testing at the construction site.

Creating Digital Requests for Information

What is the best format to use to distribute punch lists or digital RFIs to the relevant parties?

One of the best formats for reporting viewpoints and issues is the HTML report option. This format can easily be used to reach a wide audience, as the reports require no additional software to see the screenshot of the tagged item and any associated comments. 

Is it wise to save all the review session markups over the course of the project and the model's versions?

It is always safer to document the work, whether for internal referencing or for contract management. You can easily store each version\u2019s review\u2019s session tags in folders marked with their date, thus keeping records of what you have found and discussed. You can then save this to go back to it later and easily distribute it to other team members.

How can this paperless workflow for reviewing issues save costs over the life of a project?

Using digital RFIs saves time in the printing, distribution, and administration of the information requests. The 3D visualization environment minimizes the need to interpret and compose written explanations of each issue, since the interactive model carries so much contextual and particular information implicitly. A 3D model is worth more than 1,000 words!