New reinforcement object type - rebar assembly

Tekla Structures
2022
Tekla Structures

New reinforcement object type - rebar assembly

Tekla Structures 2022 introduces rebar assembly, a reinforcement object type that combines together any reinforcement object types. You can also include assemblies in rebar assemblies, and so add couplers, end anchors, and other parts as sub-assemblies. Rebar assemblies are useful when you model reinforcement cages or custom meshes that will be prefabricated, for example.

To create a rebar assembly:

  1. Create the reinforcement objects (and the possible parts, such as couplers and end anchors) that you want to include in the rebar assembly.

  2. On the Rebar tab, click Assembly > Create rebar assembly.

  3. Select the objects that you want to include in the rebar assembly.

    You can select reinforcing bars, bar groups, rebar sets, reinforcement meshes, strands, and assemblies. Parts can only be added as sub-assemblies.

  4. Click the middle mouse button to finish selecting objects and to create the rebar assembly.

    The reinforcement object with the highest weight becomes the main object of the rebar assembly. The main object then sets the coordinate system of the rebar assembly for drawings and reports, for example.

    Note that if you select components and want to include the component objects in the rebar assembly, the components need to be exploded first. Tekla Structures warns you about this and explodes the components when you click Yes in the warning dialog box.

To modify the rebar assembly structure or to remove objects from it, use the other new commands under Assembly on the Rebar tab:

Alternatively, you can use the corresponding commands on the right-click context menu.

To add more objects to the same hierarchy level as the other objects in an existing rebar assembly, use the Assembly > Add to assembly command on the context menu.

If needed, you can also adjust the coordinate system of the selected rebar assembly by using direct modification. Click Define or remove coordinate system on the contextual toolbar, and then drag these handles:

When you work with rebar assemblies, use the same selection switches and the same methods to move in the assembly hierarchy as with other nested assemblies.

You can also number rebar assemblies and add them to pour units in the same way as other assemblies.

Rebar assemblies in reports and filtering

  • There is now a new content type, REBAR_ASSEMBLY, with many template attributes available for rows in Template Editor. You can use these when you report and filter rebar assemblies.

  • Two new template attributes, ADDED_TO_REBAR_ASSEMBLY and REBAR_ASSEMBLY_TYPE, are introduced.

  • A new report template, TS_Report_Inquire_Rebar_Assembly.rpt, is used with the Inquire object command for rebar assemblies.

  • For example in filtering, you can use the MAINPART. prefix in front of an attribute name to access the properties of the main reinforcement object from the rebar assembly level.

Rebar assemblies in drawings

You can now create drawings for rebar assemblies, define view-specific rebar assembly settings on the Rebar assembly tab in drawing view properties, and add assembly position in reinforcement marks and associative notes.

This new feature streamlines the creation of reinforcement cage drawings for cast-in-place structures as well as welded mesh drawings for precast manufacturing, for example.

  • You can create drawings for rebar assemblies with the new Create fabrication drawing command, which you can find on the ribbon, context menu, and contextual toolbar. First create a rebar assembly in the model by using the new Create rebar assembly command. Then select the rebar assembly in the model and create the drawing.

    For more information about the new way of creating fabrication drawings, see Fabrication drawings - create single-part, assembly and cast unit drawings more efficiently.

Adjust rebar assembly visibility and representation

  • A new tab Rebar assembly has been added in drawing view level reinforcement properties for rebar assemblies in cast unit, assembly, and general arrangement drawings:

    • Set the Visibility of rebar assemblies: Select Visible or Not visible.

    • Set the rebar assembly Representation:

      Outline: The rebar assembly and all its sub-assemblies are shown as outline boxes.

      As individual rebar objects: All rebar objects in the rebar assembly and sub-assemblies are visible.

      Sub-assemblies as outline, highest level as individual rebar objects: All sub-assemblies are shown as outline boxes and the highest level of the rebar assembly is shown as individual rebar objects.

    • Set the rebar assembly line color and type.
    • Similarly as with rebar meshes, you can choose to display a symbol for the rebar assembly. The symbol options are the same as with meshes. The mesh symbol appears in the middle of the diagonal line.

Add assembly position to reinforcement marks

The Assembly position element is now available in reinforcement mark properties, and associative note properties. It gives the position number of the associated rebar assembly.

Filter view contents by using assembly template attributes

You can use the assembly template attributes ASSEMBLY.HIERARCHY_LEVEL and ASSEMBLY.ASSEMBLY_POS for filtering the drawing view contents. To create filters, in drawing view properties, click Filter in the options tree. Examples:

  • To show the desired assembly level, select Template as Category, type ASSEMBLY.HIERARCHY_LEVEL as Property, select Equal, and define the desired assembly level as the value.

  • To show several levels, use the ASSEMBLY.HIERARCHY_LEVEL attribute, select Greater or equal and type the number of the lowest level that you want to show as the value.

  • To show or hide the rebar assemblies you do not want to see, use ASSEMBLY.ASSEMBLY_POS, select Equal or Does not equal and type the assembly position number.

The following example filter shows the hierarchy level 3 assemblies that have the position number AA/1:

Note that you can also create a drawing view filter by selecting Assembly as Category and Position number as Property and then define the assembly position number as the value. With this filter the view shows assembly AA/1 (including all its sub-assemblies).

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