Create a rebar set

Rebar sets are reinforcing bars that you can modify by using direct modification and the rebar set guidelines, leg faces, and local modifiers. You can create rebar sets when you want to flexibly reinforce various areas in concrete parts or pour objects.

You have several options for creating rebar sets. Longitudinal and crossing rebar sets, and rebar sets created according to concrete part or pour object faces, are attached and adaptive to a concrete part or pour object. Using the Point input command you can create rebar sets even outside concrete objects. You can also use Rebar shape placing tool to create rebar sets.

Note:

When you work with rebar sets, ensure that the Direct modification switch is active.

Basic concepts related to rebar sets

The leg faces of a rebar set are planes that define where the reinforcing bar legs are created. Tekla Structures creates leg faces at the reinforced faces of concrete parts or pour objects, or according to the points you pick when you create rebar sets.

The rebar set leg surfaces are similar to leg faces, but they can be curved. Tekla Structures creates leg surfaces when you create rebar sets using the By guidelines command.

Each rebar set has at least one guideline that defines the distribution direction of the bars. The spacing of the bars is also measured along the guideline. The guideline can be a line, or a polyline that may have corner chamfers.

In the example below, the leg faces are shown in gray, and the guideline is highlighted in yellow:

The position of the guideline affects the bar creation. If you move or lift an end of the guideline, the bars turn respectively. For example:

If needed, you can create up to two secondary guidelines, and use them to define different spacings along the rebar set. You can also use secondary guidelines when you create longitudinal bars for curved structures. Tekla Structures automatically creates three guidelines for longitudinal rebar sets in curved beams, polybeams, strip footings, and wall panels. The rebar sets that have leg surfaces can only have one secondary guideline.

If you need to modify a rebar set only at certain locations, you can create local property modifiers, end detail modifiers, and splitters.

Create longitudinal rebars

You can create rebar sets that consist of longitudinal reinforcing bars in a concrete part or pour object.

Depending on the concrete object you want to reinforce, use a part view or a pour view.
On the Rebar tab, click Longitudinal.
Move the mouse pointer over the edges of a concrete part or pour object.

Tekla Structures highlights the cross sections that you can select.
Select the cross section that you want to reinforce.
If needed, modify the cross section size or shape for the bars.

To do this, click on the contextual toolbar, and then drag the cross section handles.
In the selected cross section, select the faces that you want to reinforce.

By default, only one of the faces is selected. To select multiple faces, hold down Shift or Ctrl.

Tekla Structures highlights the selected faces in yellow.
To extend or shorten individual faces, click on the contextual toolbar. Then drag the yellow and magenta end handles.
To finish, click the middle mouse button, or click Create the rebar set on the contextual toolbar.

Tekla Structures creates a rebar set at each selected face, and the bars perpendicular to the selected cross section.

Create crossing rebars

You can create a rebar set that consists of crossing reinforcing bars in a concrete part or pour object.

Depending on the concrete object you want to reinforce, use a part view or a pour view.
On the Rebar tab, click Crossing.
Move the mouse pointer over the edges of a concrete part or pour object.

Tekla Structures highlights the cross sections that you can select.
Select the cross section that you want to reinforce.
If needed, modify the shape of the bars.

To change the cross section size for the bars, click on the contextual toolbar and then drag the cross section handles.
With active on the contextual toolbar, in the selected cross section, select the bar legs that you want to create.
By default, all legs are selected and Tekla Structures creates a leg for each object face.
- To unselect a selected leg, hold down Ctrl and click the leg.
- To unselect all legs, click on the contextual toolbar.
- To select more than one leg, select the first leg, and then hold down Ctrl or Shift when selecting the rest of the legs.
- To select all legs, click on the contextual toolbar.
Tekla Structures highlights the selected legs in yellow, and creates a continuous bar shape of the legs.
If you want to rotate the bar shape, for example, to move stirrup hooks to another corner, press Tab for counterclockwise or Shift+Tab for clockwise direction.
If you need to extend or shorten individual legs, click on the contextual toolbar and then drag the bar end handles.

This way you can also create overlapping bar shapes, or extend bar ends outside the concrete object.
If you want to modify the distribution length of the bars, adjust the length of the rebar set guideline.

Click on the contextual toolbar and then drag the guideline end handles .
To finish, click the middle mouse button, or click Create the rebar set on the contextual toolbar.

Tekla Structures creates the bars parallel to the selected cross section, and distributes the bars along the length of the guideline.

Create rebars by face

You can create rebar sets according to a face of a concrete part or pour object.

Depending on the concrete object you want to reinforce, use a part view or a pour view.
On the Rebar tab, click By face.

Define the faces and areas of the concrete object you want to reinforce, and the direction of the bars using the following options on the contextual toolbar:


Click this button	To do this
	Create bars at the near face of the concrete object.
	Create bars at the far face of the concrete object.
	Create bars parallel to the longest object face edge. With the option, bars are created so that they are parallel to the edge that is closest to the mouse pointer.
	Create bars perpendicular to the longest object face edge. With the option, bars are created so that they are perpendicular to the edge that is closest to the mouse pointer.
	Create bars in two directions: one set of bars parallel to the longest object face edge, and the other set of bars perpendicular to the edge. With the option, one set of bars is parallel and the other set of bars perpendicular to the edge that is closest to the mouse pointer.
	Create bars for an entire object face.
	Create bars for a rectangular area on an object face.
	Create bars for a polygonal area on an object face.

Depending on the area you selected to reinforce, do one of the following:
- To reinforce an entire object face:
  1. Move the mouse pointer over the faces of a concrete part or pour object.
    Tekla Structures shows the object face dimensions, and a symbol that indicates the direction of the bars.
  2. Select the object face.
- To reinforce a rectangular area, pick two opposite corners of the area.
- To reinforce a polygonal area, pick the polygon corners.
  
  Then click the middle mouse button.

Tekla Structures creates the bars according to the options you selected. If you selected to create bars in two directions, Tekla Structures creates two rebar sets: one with bars parallel to the longest object face edge, and one with bars perpendicular to it.

Create rebars by guidelines

You can create a rebar set at one or more faces of a concrete part, according to one or two guidelines you define by picking points.

On the Rebar tab, click By guidelines.
Select the part faces that you want to reinforce.

Tekla Structures highlights the selected faces in yellow.

You can select as many faces as you like.

If you need to deselect a selected face, click the face again.
Click the middle mouse button to finish selecting faces.
Pick points to define the location for the primary guideline, and then click the middle mouse button.

= start point, = end point
If you want to create a secondary guideline, pick points to define its location.
Click the middle mouse button to create the rebar set and the guidelines.

Tekla Structures creates a rebar set that extends over the faces you selected, and distributes the bars along the guidelines.

Create rebars by point input

You can create a set of reinforcing bars so that you define the shape of the bars by picking points in the model.

On the Rebar tab, click More > Point input.
On the contextual toolbar, select an option to define the rebar set type and the number of cross sections in the rebar set.
The options are:
- Normal
- Tapered
- Tapered ridge
- Tapered curved
- Tapered N
If you select the Tapered N option, enter the number of cross sections.
Pick points to define the shape of the bar at the first cross section.

You can use different snapping methods, such as Ortho and temporary reference points.
Click the middle mouse button to finish picking.
Depending on the rebar set type and the number of cross sections, do one of the following:
- For a Normal rebar set, pick the start point and the end point of the rebar set.
- At the second and subsequent cross sections for other types of rebar set, pick points to define the bar shape. Then click the middle mouse button to finish picking at each cross section.

Tekla Structures creates a rebar set with leg faces between each cross section.

Rebar set properties

Use the contextual toolbar or the property pane to view and modify the properties of rebar sets. The file name extension of the property file is .rst.

See also Rebar set properties and Modify a rebar set.

Limitations

Roundings in bent bar corners are not taken into account in automatic clash avoidance when Tekla Structures creates rebar sets and arranges them to layers.
You cannot create rebar sets in deformed parts.