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Rebar sets - A flexible new way to create reinforcement

Last updated March 6, 2017 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 
2017

Rebar sets - A flexible new way to create reinforcement

Rebar sets - A flexible new way to create reinforcement

Tekla Structures 2017 introduces rebar sets that are a very flexible and versatile method to create reinforcement. Using rebar sets you can reinforce various areas in concrete parts, as well as in pour objects, or outside concrete objects. Rebar sets are adaptive to the changes in concrete parts, and updated automatically if the dimensions or concrete cover thickness of the parts change.

It is most beneficial to use rebar sets when you reinforce large slabs with openings, irregular profiles, such as retaining walls and box girders, or pour objects, or create crossing bars in polybeams and strip footings.

The new Rebar set commands are available on the Concrete tab:

When you create multiple rebar sets in a concrete part, Tekla Structures automatically arranges overlapping bars at each part face to layers. If needed, you can easily fine-tune the order of the bar layers.

Rebar sets are easy to modify

Rebar sets are reinforcing bars that you can easily modify as a group, or only at certain locations. You can use direct modificationfunction that activates the mode where the model objects can be modified by using handles

Direct modification enables additional handles and modification options.

, and the new methods specific to rebar sets: guidelines, leg faces, and local modifiers.

For more information about the new objects related to rebar sets, see Basic concepts related to rebar sets.

The example below shows the planes (the gray leg faces ) that define where the reinforcing barreinforcement that represents a steel bar used to reinforce a concrete structure

The steel bars are usually ribbed and they are used to increase the tensile strength of concrete.

legs are created, and how the rebar set guidelinedefinition of the distribution and direction of the reinforcing bars in rebar sets

The spacing of the reinforcing bars is measured along the rebar set guideline. The rebar set guideline can be a line, or a polyline that may have corner chamfers.

(highlighted in yellow) defines the distribution direction and spacing of the reinforcing bars.

In the following examples, rebar set modifiers have been used to modify the rebar sets locally. A magenta end detail modifierrebar set modifier that can be used to create hooks or threading for certain reinforcing bars in a rebar set

The rebar set end detail modifier affects the nearest end of the reinforcing bar.

adds hooks to the bar ends it affects, and a green property modifierrebar set modifier that can be used to locally change the properties of certain reinforcing bars in a rebar set

changes the properties of certain bars only.

You can cut rebar sets using the cutting commands on the Edit tab, and modify the cuts using direct modification. You can also split and splice bars with splitters, which are one type of modifiers.

Rebar set properties available in the property pane

You can view, define, and modify the rebar set properties on the contextual toolbarfloating toolbar that contains commands for modifying the most common object properties

The user can customize the contextual toolbar.

The term mini toolbar is used in Tekla Structures until version 21.1.

and in the property panecontrol element in Tekla Structures user interface in the form of a side pane window

The property pane can be used to show and modify the properties of model objects.

, which is a new window available through the side pane.

  • To open the property pane, double-click a rebar set in the model, or clickin the side pane.
  • To apply the modified properties (highlighted in yellow) to the model, clickin the bottom left corner of the property pane.
  • To save the properties for later use, enter a name for the properties file in the topmost box in the property pane, and then click.
  • If you want to use previously saved properties from a file, select the properties file from the topmost list in the property pane:

The property pane is also available for the following rebar set specific objects:

  • Leg faces
  • Secondary guidelines
  • Property modifiers
  • End detail modifiers
  • Splitters

New settings related to rebar sets

In Tekla Structures 2017, there are new Reinforcement settings related to rebar sets in the Options dialog box:

You can define the default concrete cover thickness of the rebar sets in a model, and the minimum lengths for the bars and end legs that will be created.

To define the cover thickness of the rebar sets in an individual concrete part, you can use the Concrete Cover tab in the user-defined attributes of the part.

Tekla Structures 2017 also introduces a new advanced option XS_REBARSET_COLOR_BARGROUPS that you can use to set the coloring of rebar set bars in model views.

Rebar sets in drawings

The reinforcing bars that are created by using the Rebar set commands are automatically grouped for drawing marking and dimensioning purposes. For more information about rebar sets in drawings, and how to dimension and mark the rebar sets, see Automatic grouping of rebar sets for drawings.

Rebar sets in numbering, reports, and Organizer

All reinforcing bars that are created by using the Rebar set commands are individual bars, which means that:

  • In numberingprocess of assigning position numbers to parts, cast units, assemblies, or reinforcement

    In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

    , each bar in a rebar set receives its own position numberidentifier that is assigned to all similar parts, assemblies, cast units, or reinforcement

    Position number consists of a prefix, separator, and running number. The prefix is part of the position number, identifying a numbering series. The running number is part of the position number, and is the assigned number in the numbering series, based on the start number. The separator is an optional character, such as a slash, that separates the prefix and the running number.

    In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

    In the US, the term piece mark or ship mark is used to refer to a position number.

    .
  • In reports, the bars in rebar sets are listed individually. To combine identical rows in Template Editortool in Tekla Structures that is used for creating and modifying templates to be used in drawings and reports

    , set Sort type to Combine in row properties. To sum the values of identical bars, you can use the Sum values across all rows option under When rows are combined for value fields in Template Editor.
  • In Object Browser , the bars in rebar sets are listed individually on separate rows, and the Quantity column shows 1 on each row. If you combine identical rows, the Count column shows the number of identical bars.

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.
  • You cannot create crossing bars in polybeams or variable cross sections if the angle between neighboring segment faces is larger than 45 degrees.
  • Tapered bar groups within rebar sets do not have position numbers, so position information is not included in reinforcement marks in drawings.

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Comments

by Keaton Valentine

How about some instructions on how to use this tool. There are always a great deal of changes, but very little instruction.

by Hanna from User Assistance team

Thank you for the feedback, we will look into that.

by Tommi Hautalahti

There are several links throughout this page to the instructions on other pages in the service, which explain how to use this feature. The release notes are mainly meant to give an overview to what has changed.