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Identifying and Resolving Issues

BIM for Architecture, Engineering, and Construction Curriculum

Exercise 5.2.1: Reviewing and Marking Up

In this exercise, students will learn how to:

  • Create viewpoints that effectively communicate issues needing resolution.
  • Measure, tag, redline, and add comments to a saved viewpoint.
  • Manage issues through searching comments and tags based on issue status or author.
Figure 5.2.1 - Saving viewpoints that highlight a lighting issue

Video Tutorial

Student Exercise

Download Unit5_Lesson2_Exercise1_Start.zip: Imperial or Metric
Navisworks Manage 
  • Create viewpoints to effectively communicate the following problems found during model review:
    • Conference Glass Door Panel Missing on Level 2. 
      • Create this view using a top cutting section plane that reveals the Level 2 interior spaces, and then hide the Structural Model and the Ceiling objects to better expose the view of the door panel. (The difference is subtle, but the fixed panel in the model is missing the door handle.)

    • Level 2 Sink Fixture at Wrong Elevation. 
      • Create this view by using a front face cutting section plane to expose the restroom layout in a perspective-elevation view.

    • Missing Atrium Railing on Level 3.
      • Create this view by walking through the model or using a face cutting section plane from back to front.

  • Classify these viewpoints and organize them into file folders that target the disciplines responsible for resolving each issue.
  • Try searching for comments created by particular authors or having different status.

 

Figure 5.2.2 - A viewpoint displaying the restroom sink located at wrong height

Exercise 5.2.2: Performing Clash Detection

In this exercise, students will learn how to:

  • Design clash detection tests to look for conflicts between different pairings of element types using the selection tree and set manager.
  • Specify different types of class detection tests to look for hard, clearance, and duplicate clash types.
  • Use batch tests to evaluate and verify design iterations.
  • Save and export clash tests for use on other projects.
Figure 5.2.3 - Clash detection results between the wood framing and HVAC systems

Video Tutorial

Student Exercise

Download Unit5_Lesson2_Exercise2_Start.zip: Imperial or Metric
Navisworks Manage 
  • Run a hard clash test looking for conflicts between the HVAC elements and concrete beams on Level 1. Use the selection tree to select the model elements to be verified.
  • Repeat the same hard clash test as above, but use a selection set select the concrete framing elements.
  • Run a clearance clash test with a tolerance of 6" (0.15 m) to look for conflicts between the ducts and lighting fixtures on Level 1.
  • View the results from the previous test by selecting each of the reported clashes and altering the display settings for each viewpoint to highlight the conflict.

 

Figure 5.2.4 -  Concrete beams interfering with the round flex duct of the HVAC system

Exercise 5.2.3: Creating Digital Requests for Information

In this exercise, students will learn how to:

  • Explore the results of the clash tests as lists and as scene views.
  • Manage and organize clash test results by the cause of the problem or the discipline responsible for resolving the problem.
  • Differentiate between valid and invalid clashes.
  • Tune the appearance of the viewpoints in order to highlight the essential elements shown.
  • Creating clash reports using various output formats options (Viewpoints, HTML, TEXT, or XML).
Figure 5.2.5 - Grouping like clashes into clash sets

Video Tutorial

Student Exercise

Download Unit5_Lesson2_Exercise3_Start.zip: Imperial or Metric
Navisworks Manage 
  • Review the clash test results and the conflicts reported between the concrete framing and the exposed HVAC system in the ceiling space of Level 1. Then create folders to group and consolidate the clashes related to the Flex Duct Round and to the Oval Duct.
  • Using a similar approach, group and consolidate the clashes reported in the clearance clash test between the ducts and lighting fixtures on Level 1. Group the clashes results into folders based on the root causes of the conflicts.
  • Add tags and comments to each set of clash results that describe the needed resolution.
  • Create a Viewpoint report and an HTML to report these results to the responsible disciplines. Open each report to confirm the accuracy of the simplified set of clashes included in the reports.

 

Figure 5.2.6 -  Managing clashes from concrete framing and exposed ducts