In Tekla Structures 2025, you can number reinforcement objects using running sequence numbers that start from 1 (or A, or other specified start number or letter) within each cast unit or pour unit. This method complies with the industry standards of many countries and makes the reinforcement numbers smaller, shorter, and easier to use and read.

There is now a new tab, Reinforcement sequence numbering, in the Numbering Setup dialog:

When you select Yes in the Create reinforcement sequence numbers list, Tekla Structures will use the sequence numbering settings for the specified reinforcement objects the next time you number model objects. This simplifies the reinforcement numbering workflow, because you no longer need to use the Rebar sequence numbering macro separately, and you do not need to run the macro before you open a drawing or create a report that shows reinforcement.

Note that the Number rebars in cast in place using list is only available when pour management is enabled for the model (the advanced option XS_ENABLE_POUR_MANAGEMENT is set to TRUE).

With selection filters, you can define object groups that will be numbered using reinforcement sequence numbers. To define settings for a selected object group, click Edit settings and use the Reinforcement sequence numbering settings dialog.

To define the default separator for reinforcement sequence numbers, go to File menu > Settings > Options > Numbering. There is a new list, Rebar sequence number separator, where you can select dot (.), comma (,), slash (/), or hyphen (-) to be the default separator.

Previously, the number of guidelines in rebar sets was limited to two, or three in curved structures. This restriction has now been removed for rebar sets with leg faces, allowing an unlimited number of guidelines.

Tekla Structures now automatically creates the necessary number of guidelines for rebar sets that you create using the Rebar > Longitudinal command.

For example, for longitudinal rebar sets in flat polybeams, Tekla Structures 2025 creates one guideline at each sharp polybeam corner, and three guidelines at each curved polybeam segment. This enhancement makes it possible to easily reinforce flat, continuous polybeams and strip footings using rebar sets.

If you want to add more guidelines to existing rebar sets, you can use the Secondary guideline command on the Rebar set contextual tab on the ribbon.

A new property, Chamfer type, is now available for rebar set guidelines. With the chamfer type options None and Arc point you can adjust how rebar set bars follow sharp and curved part corners. You can find the Chamfer type property in the following locations:

• In the rebar set properties under Primary guideline, which is a new section in the property pane

• In the secondary guideline properties under General in the property pane

• On the contextual toolbar for guidelines

With the new secondary guideline property Inherit offsets from primary set to Yes, you can use similar start and end offsets for secondary guidelines as those of the primary guideline. The offsets are automatically adjusted so that the rebar set bars run parallel to the edges of the parent part.

A new property, Close shape, is now available in the rebar set properties in the property pane.

When you set Close shape to Yes, bar legs in rebar sets are connected over the gaps of leg faces or leg surfaces, for example, in T-shaped beams, ledger beams, and L-shaped columns.

Tekla Structures automatically extends or shortens existing disconnected bar legs to intersections, so that a continuous bar shape is formed. Typically, the result is a closed shape, but it can also be an open shape. The continuous bar shape can also extend outside the concrete if the intersection of the existing leg faces or leg surfaces is outside the concrete.

The Close shape property does not affect the leg faces and leg surfaces of rebar sets; only the bar legs are extended or shortened. Tekla Structures does not delete or add leg faces or leg surfaces to automatically form a continuous bar shape. If you want to add or delete a leg face or leg surface, do it manually before selecting Yes for Close shape.

A new Inquire command, Rebar set layers, is now available on the ribbon, and a new button on the contextual toolbar for rebar sets and for leg faces and leg surfaces. You can use the command to gain more information about which rebar sets affect and which are affected by the placement of the selected rebar set.

Rebar set bars that are created using leg surfaces now respect the concrete cover at all part edges, including round cuts, openings, notches, and concave edges. This applies to both straight and curved bars, and works with property modifiers, end detail modifiers, and splitters.

In the Options dialog, you can now control the automatic creation of cuts for rebar sets and set the minimum size for cuts to be created. By default, all cuts in the parent concrete parts are also created to the rebar sets. This applies to the rebar sets that are created using the commands Crossing, Longitudinal, and By face on the Rebar tab.

If you want to adjust the default Cut creation settings, go to File menu > Settings > Options > Rebar set > General, and use the following settings:

• In Automatically create cuts, select whether the cuts in the parent parts are created to the rebar sets when the rebar sets are created.

• In Do not create cuts smaller than, define the minimum dimension for the cuts to be created. For round cuts, this dimension is the diameter, for rectangular cuts, the shortest edge of the cut, and for polygonal cuts, the shortest edge of the object-oriented bounding box around the cut.

Tekla Structures 2025 introduces the Auto splitter detailing component for rebar sets. With Auto splitter you can generate rebar set splitters that split and splice long bars in rebar sets so that the bars do not exceed the stock length.

Auto splitter is similar to the existing Automatic splicing tool for reinforcing bar groups. However, Auto splitter is more user-friendly, because it updates automatically when the split rebar set is modified.

The error messages that are shown for rebar sets in the Inquire object window have been improved. For rebar set bars that are not valid, Tekla Structures now shows an error number (ERROR_STATUS attribute) and a description of the reason why the bar is not valid.

The errors are as follows:

• (1) Unable to automatically remove a leg that was too short for the bending radius

• (2) Unable to apply length adjustment to start of bar

• (4) Unable to apply length adjustment to end of bar

• (8) Unable to apply cranking to the bar

• (16) Unable to apply cover/layer/additional offsets to the legs of the bar

• (32) Unable to fit smooth curves to bar geometry

• (64) Unable to calculate bendings for bar geometry

• (128) Unable to calculate bendings for bar geometry

• (256) Incorrect splitter lapping parameters

• (512) Unable to apply length adjustments to closed bar

Note that errors 64 and 128 have the same error message. They are different errors, but are both related to the rebar bending calculations.

• A new content type, SIMILAR_REBAR_ASSEMBLY, can now be used in templates to report information about similar rebar assemblies.

• Previously, in reinforcement marks in drawings, the Number element showed an incorrect value for spiral reinforcing bars. Now it shows 1, as each spiral bar is a single entity. This is also in line with how the NUMBER attribute works in templates.

  To show the number of rounds for a spiral bar, use the ROUNDS attribute that shows a decimal value.