Tekla Structures 2025 SP9

Tekla Structures
Modified: 27 May 2026
2025
Tekla Structures

Tekla Structures 2025 SP9

The latest Tekla Structures service pack and updated environment installers are available in Trimble Downloads.

Download Tekla Structures

Tekla Structures 2025 SP9.1

Tekla Structures 2025 SP9.1 was released to resolve a critical on-premises licensing issue (TTSD-77227) in Tekla Structures 2025 SP9. The issue impacted all legacy on-premises (FlexNet) licenses, but did not impact online subscription licenses. 

After the software had been left idle for a period, Tekla Structures falsely reported that the license was no longer available. It was not possible to reconnect to the license server, and clicking Save the model and close Tekla Structures could fail to save recent changes, forcing users to rely on autosave files.

Tekla Structures 2025 SP9.1 is a full installation package. Tekla Structures 2025 SP9.1 contains all the fixes from Tekla Structures 2025 SP9, along with the additional fix described above. 

Users who need this fix should download Tekla Structures 2025 SP9.1

 

AI-powered modeling with Tekla Model Assistant (Preview)

Tekla Structures 2025 SP9 introduces the Tekla Model Assistant tool as a Preview feature.

Tekla Model Assistant is an agentic AI tool integrated into Tekla Structures that uses natural language to perform modeling and drawing tasks. The assistant is available in the Tekla Model Assistant side pane window. Tekla Model Assistant is context-aware and allows you to create model objects, such as beams and pad footings, modify object properties, and automate drawing operations such as creating GA drawings.

For example, you can ask Tekla Model Assistant to Create a 3x3 grid with pad footings at every intersection, Set class 5 on all HEA300 beams, or Add part marks to all columns in this drawing.

You can customize Tekla Model Assistant by defining rules and skills that are loaded from user settings, model, project, or firm folders. You can also use Tekla Model Assistant with Trimble Connect to download and import files from a Trimble Connect project and to upload PDF drawings.

To answer questions about how to use Tekla Structures, Tekla Model Assistant uses Trimble User Assistance information and breaks down complex requests into individual steps and displays its progress as it processes your requests. Tekla Model Assistant automatically signs you in using your Trimble Identity from your active Tekla Structures session.

How Tekla Model Assistant works

  • The assistant reads your live Tekla Structures context, such as your selected objects and active views. This means you do not need to manually enter data or copy-paste information for the assistant to understand what you are working on.

  • The assistant breaks down complex requests, uses the output of one tool as the input for the next to perform a chain of actions. It can handle workflows with multiple steps autonomously.

  • The assistant is agentic, but it is not fully independent. The assistant will ask for confirmation on risky operations, and it will only perform actions based on instructions.

For more information, see AI-powered modeling with Tekla Model Assistant (Preview) in Trimble User Assistance.

TTSD-75474, TTSD-73216

New AI platform for Trimble Assistant for Tekla

A new version of Trimble Assistant for Tekla is now available, powered by a proprietary Trimble AI platform. This version is currently in development.

The existing version of the Trimble Assistant for Tekla remains available as Trimble Assistant for Tekla (Classic). In the Trimble Assistant for Tekla side pane, you can change between the new version and the (Classic) version. Conversation history is not shared between the new version and the (Classic) version.

For more information, see Trimble Assistant for Tekla.

TAIA-482

Improved cloning of section views and level marks

Level marks are now cloned correctly when cloning section views in general arrangement drawings. The cloned section views also display the target floor information correctly.

TTSD-53534

Moving drawing views containing plugins

Moving drawing views containing plugins from one drawing to another now works more reliably.

For more information about moving drawing views to another drawing, see Copy, move, and link drawing views.

TTSD-38061

New geographical data storage location for Tekla Model Sharing and Trimble Connector

Tekla Model Sharing and Trimble Connector: United Kingdom is now supported as a geographical data storage location for Tekla Model Sharing and Trimble Connector. You can select United Kingdom as a data storage location when sharing a model or starting a new Trimble Connect project. Once the United Kingdom region is active in Trimble Connector, it will automatically appear as a selectable option.

TTSD-76129

Fixes

Apply
Defect number Development area Description
TSAC-10065 Concrete components

Embedded anchors (008): Sometimes, the anchors were created on the wrong face of the main part due to the complicated shape of the part. This issue has been fixed.

TSAC-10086 Concrete components

Reinforced concrete stair (95): The bending radius of rebars A, I, and J is now properly set from the rebar database.

TSAC-10093 Concrete components

The Continuous beam reinforcement macro now works correctly again.

TSAC-9774 Concrete components

Strip footing reinforcement (75): The main bar bending radius is now properly set using the value defined in the rebar database.

TSAC-9865 Concrete components

Reinforced concrete stair (95): Previously, when steps had small chamfers and ridges were created, the ridges were not properly formed. This issue has been fixed.

TSAC-9872 Concrete components

Corbel reinforcement (81): Previously, rebars were sometimes created with incorrect properties or grade. This issue has been fixed.

TSAC-10057 Steel components

Haunch (40): Previously, when switching the haunch type between a profile haunch and welded plates haunch, the position of compression stiffeners was changing. This issue has been fixed.

TSAC-10091 Steel components

Partial stiffened end plate (65): Previously, shear tab chamfers were not created when you had selected to create chamfers, but did not specify any values. This issue has been fixed.

TSAC-10124 Steel components

Hollow brace wraparound gusset (59): Previously, it was not possible to set the bolt assembly type for the brace bolts on the brace side. This issue has been fixed.
 

TSAC-10132 Steel components

End plate (144): Previously, unwanted horizontal stiffeners were created when a seat plate was used. This issue has been fixed.

TSAC-10151 Steel components

Cage ladder (S60): Previously, when you defined to cut stringers into segments with a certain maximum length and the stringers were created as polybeams, some segments were created with an incorrect length. This issue has been fixed.

TTSD-75464 Import, export, interoperability

IFC4 and TrimBIM export: The MAIN_PART property was not exported correctly in the IFC4 and TrimBIM exports. This issue has been fixed.

TTSD-76009 Import, export, interoperability

IFC4 and TrimBIM export: All nut type and number properties are now exported in the TrimBIM and IFC4 export. 

TTSD-76186 Import, export, interoperability

IFC4 export: Property set filters for rebar sets now work for the IFC4 export.

TTSD-76289 Import, export, interoperability

IFC4 reference models: Previously, IFC4 reference models were positioned incorrectly when you used map conversion and a base point simultaneously. This issue has been fixed.

TTSD-75669 Templates and reports

Templates in marks: Previously, it was not possible to use the CURRENT_DRAWING.SIZE attribute in mark templates. This issue has now been fixed.

TTSD-76093 Templates and reports

Template Editor: Sometimes modifying a template object, for example a line, in the property dialog could result in an empty template. This issue has been fixed.

TSAC-9290 Drawings

Previously, when you defined a rotation for a symbol in a drawing, the drawing grid labels were also rotated when you clicked Modify in the Advanced grid label properties dialog. This issue has been fixed.

TSAC-9690 Drawings

Advanced grid labels: Now the customized grid labels are always placed according to the positioning settings defined in the Advanced grid label properties dialog. Previously, changing some settings in the dialog could change the label positions.

TTSD-72801 Drawings

Previously, in certain cases, some circular or arc lines of circular radial grids were missing from drawings. This issue has been fixed.

TTSD-73659 Drawings

Previously, circular or in other ways curved cuts or outer edges in pour objects were not displayed correctly in reflected views in drawings. This issue has been fixed.

TTSD-74297 Drawings

View-based dimensioning: When creating automatic view-level dimensions for rebars using integrated dimensions as the dimensioning type, the created dimensions are now correctly aligned perpendicularly to the rebars.

TTSD-74676 Drawings

Symbols that contain long texts now work more reliably in drawings. 

TTSD-74864 Drawings

Create fabrication drawings (local): Creating fabrication drawings for cast units did not always work when you had selected the cast units using the Select parts selection switch and disabled the Creation review dialog. This issue has been fixed.

TTSD-75171 Drawings

Earlier, circular lines of circular radial grids were not shown in drawings. This issue has been fixed.

TTSD-75941 Drawings

Aligning drawing marks to a point: Previously, when aligning drawing marks to a point using the Align to a point command, if you picked the point inside another view, the drawing stopped showing the selected objects with selection highlight. This issue has been fixed.

TTSD-75949 Drawings

Previously, some hatches in drawing templates were not printed correctly. This issue has been fixed.

TTSD-76030 Drawings

Fabrication drawings (local): Previously, in the Creation review dialog, the top-matching templates and the top-matching templates with multiple sheets grouped together were not always sorted. Now, both the top-matching templates and the top-matching templates with multiple sheets grouped together are always sorted in ascending order.

TTSD-76195 System and options

The -a option to rename .tsep files has been re-enabled in TeklaExtensionPackage.BatchBuilder.exe.

TTSD-76610 Tekla Model Sharing

Tekla Model Sharing: Building hierarchy is now handled faster at read in.

TTSD-75247 Reinforcement

Rebar shape recognition: The maximum limit on Extra point shortening has been removed (for example, XS_​REBAR_​RECOGNITION_​EXTRA_​POINT_​SHORTENING set to 2.56 mm).

TTSD-70916 Modeling

Fixed an issue where entering invalid values in the grid property pane caused Tekla Structures to stop working unexpectedly.

TTSD-72102 Modeling

Previously, it was not possible to change the material thickness of FP_Y or GYBA folded plates. This issue has now been fixed in environment installers.

TTSD-75102 Modeling

Previously, CUSTOM. properties were not included when exporting to TrimBIM (.trb) format. This has been fixed.
 

TTSD-75282 Modeling

When using the Tab key to move between fields in the property pane, the text in the fields is now correctly selected.

TTSD-76211 Modeling

Building hierarchy: Site, building, and building storey name can now contain 61 characters. 

TTSD-76239 Modeling

Trimble Visualizer has been updated to a newer version.

SOLD-2921 Licensing


License Management Improvement: Closing Tekla Structures no longer triggers a "Failed to return license" error message if the license has already been released by another concurrent session of the same version.

TTSD-67795 Licensing

The Exit dialog has been updated to make the option to keep the license reserved easier to understand.

TTSD-75521 Core

Previously, when you selected Close window on the Tekla Structures icon in the Windows taskbar, Tekla Structures could stop working unexpectedly instead of shutting down. This issue has been fixed, and Tekla Structures stability has been improved.

TTSD-76629 Tools and components

Earlier, in some rare cases, Tekla Structures might stop working unexpectedly when working with rebars in system components. This issue has been fixed.

TTSD-68821 Import, export, interoperability (steel)

STEP/IGES export: Tapped holes are now properly exported with the core hole size.

TTSD-70546 Import, export, interoperability (steel)

STEP/IGES export: Previously, if you did not enter an export file name, the export did not run. Now, you receive a visual notification when the export file name is missing.

TTSD-75019 Import, export, interoperability (steel)

STEP/IGES export: Bolt holes now extend completely through the material.

TTSD-75394 Import, export, interoperability (steel)

STEP/IGES export: Slotted bolt holes with an offset are now exported properly with the correct offset.

TTSD-75492 Import, export, interoperability (steel)

DSTV/NC:  Previously, when you exported a polybeam plate with cuts where the width was greater than the length, and the advanced option XS_USE_NEW_PLATE_DESIGNATION was set to a value that required switching the width and length, the bending lines were created in an incorrect position. This issue has been fixed.

TSAC-9860 Import, export, interoperability (concrete)

Export ELiPLAN file (68): Previously, some cuts and recesses were exported with a shift from their modeled positions. This issue has been fixed.

TSAC-9949 Import, export, interoperability (concrete)

Export ELiPLAN file (68): The accessory code for plotter objects is now exported only once per object in the record with the longest line segment. Previously, with complex cuts or openings translated into line segments, each line segment had its own accessory information.

Was this helpful?
Submit
Previous
Next