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Tekla Structures 2026 US environment Release Notes

Tekla Structures 2026
2026
Tekla Structures
Environment
United States (Imperial)
United States (Metric)

Below you will find the release notes specific to the US environment for Tekla Structures 2026.


Streamlining the US Environment ini files

The US Environment configuration has been streamlined by removing unnecessary and redundant items from the env_US.ini and Role_<unit>_<Discipline>.ini files. This effort improves alignment with global standards, enhancing consistency and predictability.

Details: 

  • Items in env_US.ini that were identical to those in env_global_default.ini or had the same values as the defaults have been removed, ensuring that only necessary customizations are retained.
  • Redundant items have been removed from the Role_<unit>_<Discipline>.ini files where they duplicated settings already present in the env_US.ini file. This optimization reduces redundancy and streamlines configuration management across different roles.
  • The XS_USE_NEW_PLATE_DESIGNATION setting in env_US.ini has been updated to FOR_STEEL_PARTS_ONLY to reflect current usage requirements.
  • The file ABP_addl_parts.gdf has been renamed to align with the global naming convention SHOW_IN_ABPLAN. Additionally, the file has been relocated from \Common\Steel\DrawingSettings to \Common\General\DrawingSettings. This change ensures consistency across environments and roles.

TSLOC-8939, TSLOC-8940, TSLOC-9776

Unified Profile Databases

Profiles across Metric and Imperial units are now managed more efficiently through a unified profile database strategy. XS_PROFDB supports multiple paths allowing one profile database while maintaining separate grouping (ProfileCatalog.Groups.xml) files for each discipline. This allows a cleaner presentation for each unit system and consistency across environments and roles.

TSLOC-9984

Removal of Duplicate Attribute Files

Duplicate attribute files have been removed from discipline directories to streamline file management and improve efficiency. These files have been consolidated into common/general directories, ensuring a more organized and efficient file structure. This change reduces redundancy and potential confusion, allowing users to work more effectively with a cleaner directory setup.

TSLOC-9973

3D Attribute set for GA Drawings

A new attribute set has been added to the General Arrangement (GA) drawing properties, giving users a baseline to configure presets and settings for 3D views.

TSLOC-5590

Reinforcement settings for drawings (rebar_config.inp) standardized

The Reinforcement settings for drawings (rebar_config.inp) files for the Cast-in-Place (CIP) and Precast environments have been merged. This change eliminates redundancy and simplifies the configuration process for users working with rebar sets in the USA Imperial environment. The ScheduleTotalLengthRoundingAccuracy has been standardized to 12.7 mm (½"), ensuring consistent and accurate rebar length calculations across different roles.

TSLOC-9975

Integration of Formwork Extension Package

Starting with the Tekla Structures 2026 release, the formwork extension package from the Tekla Warehouse will be integrated and installed with the US environment. This change consolidates all formwork content into the formwork package, resulting in the removal of standalone formwork content from the US environment. Users will benefit from a more streamlined installation process and easier updates to formwork tools.

TSLOC-10012

Addition of Trimble User Assistant (web) to the HELP Section of the Ribbon

The Trimble User Assistant (web) has been added to the HELP section of the Ribbon. This enhancement provides users with quick and easy access to the Trimble User Assistant directly from the Ribbon, improving the overall user experience by making support resources more readily available.

Image
 A screenshot of the **Help** tab in Tekla Structures. A dropdown menu under the **Self-support** icon (a checkmark symbol) is open, revealing several support options: **Instructor**, **Forum**, **User Assistance**, and a text link at the bottom for **Trimble Assistant for Tekla (web)**.

TSLOC-9770

Reordering of Object Unitechnik UDA Tabs

The Object Unitechnik User-Defined Attributes (UDA) tabs have been moved to the end of the UDA tab list. This change was made to improve the organization and accessibility of the UDA tabs, ensuring that users can more easily navigate and manage the attributes relevant to their workflows.

Concrete Buyout in the Buyout Management Tab

Buyout user-defined attributes have been removed from the Concrete Parameters tab definition and are now located in the appropriate Buyout Management tab.

Precast Custom Components Model Template Only in Precast Roles

The Precast Custom Components Model Template was previously visible in roles that were not specific to precast, which could lead to confusion and misapplication of the template in non-precast projects. XS_MODEL_TEMPLATE_DIRECTORY now includes the path %XSDATADIR%\environments\usa\<unit>\Precast\ModelTemplates\ and the Precast Custom Components Model Template has been placed in the directory.

TSLOC-9828

Removal of TS_Report_Inquire_Part.rpt from US Environment to use Common Report

The US environment previously utilized a custom TS_Report_Inquire_Part.rpt with minor modifications. These modifications have now been incorporated into the common report to streamline future localization efforts. As a result, the US environment can now utilize the common report without requiring additional changes.

Property Templates Consolidation Between Roles

The PropertyTemplates.xml files have been consolidated across disciplines to streamline the management of property templates. Only discipline specific items are in their Property templates. This enhancement reduces duplication and simplifies the configuration process.
The common file is now stored in the directory: ..\Common\General\UI\PropertyRepository\Templates.

Improved NC Export Settings Accessibility

NC Export settings have been incorporated in all roles, including those not primarily focused on steel modeling, to enhance accessibility. The  files have been moved from the \Steel\ModelingSettings directory to the General\Collaboration directory.


Fix list

Defect NumberDevelopment AreaDescription
TSLOC-7130DrawingsThere was an issue where the 'Save As' filename in the assembly drawing dialog did not match the actual filename when using the old drawing creation settings. This fix ensures consistency between the displayed and actual filenames, improving the user experience when saving assembly drawings.
TSLOC-7138DrawingsAn issue with the Master Drawing Catalog having an incorrect filter set has been resolved. Users can now expect the Master Drawing Catalog to function as intended, with the appropriate filters in place.
TSLOC-8942Advanced options

Several Obsolete advanced options have been removed from the environment (env_US.ini) and role INI files. This cleanup enhances the clarity and relevance of configuration files, ensuring that only valid and useful options are retained. The following advanced options have been removed:

  • XS_DELETE_UNNECESSARY_INT_ARRAYS
  • XS_SUPPORT_EMAIL_ADDRESS
  • XS_DIMENSION_LINE_TEXT_EPS
  • XS_USE_EXACT_EXTREMA_FOR_REFERENCE_MODELS
  • XS_MIN_BOLT_DIMENSIONS_TO_COMBINE
  • XS_MODELSYNCH_IGNORE_OBJECT_LOCKS
  • XS_SECTION_SYMBOL_REFERENCE_IF_TO_CURRENT
TSLOC-9003DrawingsIn previous versions, the settings for beams and columns in drawings caused parts to be dimensioned multiple times due to mismatched dimension settings across different views. This issue has been resolved by ensuring that all views have consistent dimension settings, particularly with integrated dimensions. The updated drawing settings now prevent the occurrence of extra dimensions, providing a more streamlined and accurate representation.
TSLOC-9004DrawingsPreviously, the dimension presets were incorrectly set to a fractional format (### #/#). This issue primarily impacted the Steel Detailing role. The dimension attributes have now been updated to ensure that the settings align with the expected metric standards.
TSLOC-9013Template EditorAdded the Project UDA Project Team, Fabrication Team, Subcontractor Team tab items to the template editor browser. Added contentattributes_Project_US_FabricationTeam.lst, contentattributes_Project_US_ProjectTeam.lst, and contentattributes_Project_US_SubcontractorTeam.lst.
TSLOC-9476Drawings

Several outdated items have been removed from the default Reinforcement settings for drawings (rebar_config.inp) file to enhance clarity and maintain relevance. The following items, previously visible in the configuration file, are no longer valid and have been removed:

  • MergeOneFormat
  • MergeTwoOrMoreFormat
  • MergeAndFormat
  • LeaderLinetype
  • MarkingDimAttributes
  • StrandSymbolFile
TSLOC-9771ProfilesTSLOC-8872 broke the Thicken Slab component because TRPZM is hardcoded. Added back the profiles that are hardcoded to profitab.inp. TSLOC-9093 fixed this for the imperial roles. This is now also fixed in the Metric roles.
TSLOC-9794PrintingRemove plotdev.bin from \USA\Common\General\DrawingSettings and use the global default XS_DRIVER location.
TSLOC-9806InteroperabilityThe 'Layer identification information' record for the the Unitechnik Export, which was missing from the objects.inp file(s), has now been added. This update ensures that the environment is aligned with the common environment, providing users with the necessary concrete layer information for accurate export processes.
TSLOC-9809User-defined attributes

Some of the user-defined attributes were missing and contained outdated attributes related to precast concrete components. Specifically, the following files were affected:

  • objects_BVBS.inp: Missing attributes for concrete lofted slab and reinforcing bar.
  • objects_EliPLAN.inp: Missing attributes for concrete lofted slab.
  • objects_HMS.inp: Missing attributes for pull force in strands and concrete lofted slab.
TSLOC-9951User-defined attributesPreviously, the Design Group Mark was defined in both objects_ModelObject_US_Concrete_ConcreteManagement.inp and objects_ModelObject_US_Design.inp files, leading to potential conflicts and confusion. The attribute has now been removed from the objects_ModelObject_US_Concrete_ConcreteManagement.inp file, ensuring that it is defined in a single location.
TSLOC-9952User-defined attributesAn issue where not all Concrete Parameters User-Defined Attributes (UDAs) were visible has been resolved. The problem was traced to comment lines in the objects_ModelObject_US_Concrete_Parameters.inp file, which have now been corrected. This fix ensures that all relevant Concrete Parameters UDAs are displayed correctly.
TSLOC-9953User-defined attributesPreviously, the Design/Detailing Status tab was incorrectly showing as the Shop/Site Status tab. 
TSLOC-9954User-defined attributesThe Object Unitechnik User-Defined Attributes (UDA) tabs have been moved to the end of the UDA tab list. This change was made to improve the organization and accessibility of the UDA tabs, ensuring that users can more easily navigate and manage the attributes relevant to their workflows.
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