Engineering Revit Plug-in for Point Load Calculations
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HangerWorks Automated Placement and Design for MEP Hangers

DEWALT HangerWorks plug-in for Autodesk Revit is a tool that automates the placement and design of manufacturer hangers and trapeze assemblies for MEP systems such as pipe, duct, conduit, and cable trays. Complex engineering calculations are built-in to the tool that enables it to size hanger and trapeze assemblies based on system material and content (water, wire, air) and determine hanger locations based on building code requirements and user-defined project standards. Contractors can expect to achieve significant BIM workflow efficiencies, cost savings, and safer buildings.

DEWALT HangerWorks Q & A

A:   A lot of time was spent enabling Fabrication Parts and Revit families to be brought into HangerWorks. HangerWorks uses RFAs for the hanger assembly with nested RFAs for the components. This allows some capabilities beyond what Fabrication Parts can do. We also support Revit 2015, where Fabrication Parts do not exist.

A:   Yes, absolutely. There are several ways to control the hanger placement spacing rules as well as which components you want to construct the hangers. There are slight differences for each type of supported system: cable tray, conduit, duct, and pipe.

A:   Correct, hangers are added to the MEP model although we do recognize structure from a linked structural model too. (e.g. when placing beam clamps) We are currently investigating an approach to place hangers in the structural model as well.

A:   It currently recognizes structural elements when looking for an upper attachment location. It warns about zone of influence collisions. The hangers do not currently warn about clashes with the systems themselves, but as we've heard that request several times now, we have added it to the enhancement backlog.

A:   No, the anchors database will contain only DEWALT anchors. This way we can ensure the anchors are engineered correctly. That said, there are other types of upper attachments, such as beam clamps, that will be provided by other manufacturers.

A:   Yes, we recognize structural steel from linked models, but the hangers should be placed in the MEP model, as they rely on the systems... both Fabrication Parts and Revit parts. We are currently investigating an approach to place hangers in the structural model as well.

A:   Yes, we have a lot of flexibility on hanger spacing rules in the settings.

A:   Yes, while the hangers are themselves referenced to the floor, they are also linked to the level above for rod lengths. Updaters have been programmed to react to system and level changes to adjust rod lengths and anchor locations. When the system moves, the hanger will move too. One exception is when only a subset of the systems on a trapeze are moved. In this case, the trapeze hanger does not change.

A:   Contact us directly. We have an open system for content libraries.

A:   HangerWorks does recognize steel beams and allows manufacturer specific beam clamps to be used as the upper attachment.

A:   Yes, cable tray is a special type of system. In settings, you can specify material properties such as lbs/ft for tray and lbs/ft for cable fill content per size. In the properties window, you can then assign the defined material to a specific system in the model.

A:   Strut is designed as well - for unbraced length - we analyze each type of system for acceptable lengths.

A:   The hangers will react to system and level elevation changes. For example, rods will adjust lengths so hangers remain connected properly to both concrete and systems.

A:   Yes, we calculate the rod stiffeners for the gravity hanger rod when seismic bracing is applied, and will display the rod stiffener too. The number of clips required is output as a parameter value too.

A:   Yes, HangerWorks is setup for both rigid and cable bracing.

A:   There will be a way to modify individual hangers to add/modify seismic supports.

A:   Yes, including beams from linked structural models. We use manufacturer specific content for the beam clamps.

A:   Yes, the load calculations are updated in real time. Currently, you change the angle or length and the loads recalculate.

A:   Revit 2015 and newer are supported.

A:   If using CADmep, you can send the model from AutoCAD to Revit using an .maj file. In order to place hangers, Revit with the HangerWorks plug-in must be used.

A:   Hangers will move or adjust elevation with system changes, but new hangers are not automatically added. System hanger spacing validation is performed after a change, so that result parameter value may indicate warnings if straight span was stretched and now needs additional hangers.

A:   Currently, you’ll need to place another hanger or copy / place and existing hanger.

A:   Not automatically, but you can copy/move/modify a hanger to be placed on the elbow. Load calculations may not update for hangers placed on the elbow, but BOM and anchor points will work fine for them.

A:   After changing your hanger spacing rules in Settings, you’ll need to reapply them to existing systems in the model by running the Update Systems command with all parts selected.

A:   No. There are 2 options to view the points: 1) Use APL 2) From a Revit Sheet, Print as PDF and then open in Magnet.

A:   Yes, you can change the color mapping from the service to a level.
First, under Settings > Output > Label Templates, change the Color Mapping Mode from Service to Level for the Large Labels.
Then, under Settings > Project > Deck, change the Label Color. Run the labels and the Large Labels for the level will be the selected color. DEWALT HangerWorks FAQ

A:   Yes. Select a single system and then click the Hangers button in the ribbon. HangerWorks will place Clevis on individually selected systems. Alternatively, under Settings > Catalogs, you can turn off Struts and then HangerWorks will have to use Clevis.

A:   In Settings > Pipe, if both straight and union are set at 8', the software will essentially ignore the union setting and continue the 8' span. So, set Union at 2' then hangers will be placed within 2' of on each side of the flange or union.DEWALT HangerWorks FAQ

A:   Yes.

A:   No, but this will be a future enhancement. Currently, systems only sit on top of the strut.

A:   No, but this will be a future enhancement.

A:   HangerWorks supports Tear drop. Strap and cable hangers (gripple) will be available soon.

A:   To adjust the angle and rotation of the seismic braces you can either: 1) Select the brace and change the Vertical Support Angle parameter in the Revit panel under Data, or 2) Select the brace and press the space key to rotate the angle by 90 degrees.

A:   HangerWorks performs clash detection on structural steel and beams for the upper attachment. An upcoming version will provide clash detection between hanger assemblies, bracing, and other systems.

A:   Yes. Use the following command line arguments with an ‘elevated’ command prompt. Request a .reg file from HangerWorks support, so that your unique license number can be included. Then, register the *.reg file to get the license codes populated. Replace the version number with the version number being installed. "C:\Installs\DEWALT HangerWorks Installer." /S /V"/qn /quiet"

A:   DEWALT HangerWorks (HangerWorks) software is designed to use manufacturer components and specific engineering calculations. Geometric changes to components are not supported and may result in incorrect engineering calculations. HangerWorks will not recognize custom components or HangerWorks components that have been renamed.
The manufacturers components, from a Revit family perspective, are stand-alone unique shared nested components. When a hanger is placed in Revit, HangerWorks only loads a default strut, rod, and anchor into the model. This is the same for the generation of each new hanger family type. New family types and components are pulled into the model on an as needed basis and as a result, HangerWorks minimizes impacts to the model size.
Editing families, except through Project Parameters, is only recommended if you are willing to manage custom parameters after installing new HangerWorks version updates. All software revisions will replace families with the most recent version, even if there are no changes to the family. As a result, customers who customize a component run the risk of losing parameters that have been added to the family. Editing families can also be done by editing Project Parameters in specific categories which can be managed outside of HangerWorks. 3rd party tools like CTC Express Tools and RUSHFORTH Tools for Revit can be helpful in managing Revit family parameters en masse.
Customers can add link-through parameters to HangerWorks specific parameters (Ex. Schedule out a cut length on a strut). In this case a user could create a custom parameter, edit the family and set it equal to the HangerWorks cut length parameter in order to be used in custom workflows.

A:   HangerWorks families are designed to optimize performance. The purpose of placing hanger assemblies in a model is to coordinate space and entice prefabrication, not to view thread details. Anchors, for example, are computationally light utilizing basic extrusions that can all be viewed from one plane and do not apply any materials, surfaces, or patterns. Another impact on performance are model updaters which are required to keep engineering calculations up-to-date when the model changes. The software has been optimized to perform updates only on modified parts, but users may notice a slow down when making changes to multiple parts at the same time.

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