Revit add-in · Structure · Rebar

Modify Rebar: cut, lap and extend rebar in Revit

Modify Rebar, developed by the RDSIC Centre at the Institute of Information Technology in Civil Engineering (IIC), puts the rebar edits most often done by hand on the ToRD tab: cut many bars at once with an automatic lap splice, extend bars to a reference plane or an element face, and stretch bar ends by a fixed length.

4 Ribbon commands
350 mm Default lap length
2019 – 2021 Revit versions
See how to use it Download and licence
What Modify Rebar does

Edit many bars at once without redrawing them

In Revit, cutting a long bar into two lapped pieces, or extending a bar end to the edge of a beam, means editing the sketch of each bar. Modify Rebar does this for the whole group of selected bars and redraws them with the same bar type, hooks and concrete cover of the host element.

  • Cut many bars at a reference plane and add a lap splice of the length you enter
  • Pick the lap side with a single click on screen
  • Extend bars to a reference plane (To Reference)
  • Extend bars to the face of another element (To Face)
  • Stretch bar ends by a fixed length entered on the ribbon (default 500 mm)
  • Keep the bar type, start and end hooks, hook orientation and cover when bars are redrawn
Column starter bars stretched by 500 mm with Stretch Rebars, shown in a 3D view.
Commands

Four commands on the Structure panel of the ToRD tab

After installation, Modify Rebar adds the following buttons to the ToRD tab. Each button has a video guide: hover over the button and press F1.

  • Cut Rebar Length

    Cuts the selected bars at a reference plane and creates a lap splice. Enter the lap length in the Cut Rebars dialog.

  • Extend Rebars To Reference

    Extends bar ends to a Reference Plane you pick.

  • Extend Rebars To Face

    Extends bar ends to the face of an element, such as a beam edge or a column face.

  • Stretch Rebars

    Stretches bar ends by a fixed length. Enter it in the Input length box next to the button; the default is 500 mm.

The Structure panel on the ToRD tab with several ToRD tools installed: Modify Rebar's Stretch Start-Point button and length box (500) sit next to the buttons of the other tools.
Workflow

Editing rebar with Modify Rebar, step by step

1. Installation and registration

  • Download the installer for your Revit version (2019, 2020 or 2021) from the Download section, extract it and run the setup file.
  • Open Revit. The ToRD tab appears with the Structure, Register and Author panels.
  • Click Licensed on the Register panel and fill in your full name, phone number, email, organisation and position. Select the tool name in the Version box.
  • Send these details with the code in the Key box to the Institute of Information Technology in Civil Engineering (IIC). After checking them, the Institute sends back the activation details.
The Registration dialog shared by the ToRD tools. The code in the Key box is tied to the computer it is installed on.

2. Cut bars and add a lap splice

  • Draw a Reference Plane where you want to cut the bars.
  • Select the bars to cut, then click Cut Rebar Length.
  • Enter the lap length in the Offset box (mm, default 350) and click OK.
  • Pick the reference plane you just drew (Select a reference plane).
  • Click a point on the side where the lap should go. The tool redraws each bar as two pieces that overlap by exactly the length you entered.
Top: a longitudinal beam bar cut into two bars with a lap splice. Bottom: column bars extended to the element above, shown in 2D and 3D.

3. Extend bars to a plane or an element face

  • Click the arrow on the Extend to element button and choose Extend Rebars To Reference or Extend Rebars To Face.
  • Select the bars to extend.
  • Pick the reference plane or the face of the target element. The nearest bar end is extended to it.

4. Stretch bars by a fixed length

  • Enter the stretch length in the Input length box on the ribbon (mm).
  • Click Stretch Rebars, select the bars (Select rebars) and click Finish.
  • Click a point near the bar end to stretch (Select a point). The end nearest the click is extended by the entered length, along the direction of the last bar segment.

Video guide for Cut Rebar Length and Extend Rebars. Video for Stretch Rebars: youtu.be/dJtPF31poMA.

Software information

Developer and licence

Name
Modify Rebar (ToRD Modify Rebars)
Revit versions
Revit 2019, 2020, 2021
Developed by
The RDSIC Centre (Research and Development of Software in Construction), Institute of Information Technology in Civil Engineering (IIC), Hanoi University of Civil Engineering
Licence
Institute of Information Technology in Civil Engineering (IIC). Licensed software, activated per computer through the Licensed button on the ToRD tab
Operating system
Windows, runs as an Autodesk Revit add-in
Works on
Structural Rebar in beams (Structural Framing) and columns (Structural Columns)
Download
Revit 2019 · Revit 2020 · Revit 2021
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