Tekla Portal Frame Designer 21 & Tekla Connection Designer 21 Service Pack 1 Release notes

Tekla Portal Frame Designer
Tekla Connection Designer
Tekla Connection Designer
Tekla Portal Frame Designer


This release will upgrade your Tekla Portal Frame Designer & Tekla Connection Designer installation to version number and should be installed to ensure optimum function of the program.  It includes a number of enhancements and issue resolutions as detailed below.

If you are upgrading from a version earlier than Tekla Portal Frame & Tekla Connections Designer 21 (version you can find details of enhancements and fixes included in all previous releases in Tekla User Assistance (TUA) and Tekla Downloads via the links below:

Licensing & Installation

  • Licensing - no new license is required for this version.
  • Installation - this service pack requires Tekla Portal Frame Designer 21 & Tekla Connection Designer 21 to be installed and will upgrade the installation to version


  • Tekla Structural Designer - if you wish to integrate Tekla Portal Frame Designer 21 and/or Tekla Connection Designer 21 with Tekla Structural Designer you MUST install Tekla Structural Designer 2021 SP1 available from the Tekla Download Service.

Fixes & Enhancements

A number of minor updates and enhancements have been included in this release, including:

  • [TSD-4665]1 - When adding wind loading for portal frames to BS 6399, editing values in the dialog such as qs would trigger recalculation of Cpe. However, reduction factors applicable to multi-span portal frames were not being applied correctly. This is corrected in this release.
  • [TSD-9256]1 - In Portal Frame Designer, when a combination had Strength load factors for loadcases set to zero, this could cause a crash in the portal frame analysis. With this fix, Strength load factors of zero in any ULS or SLS combinations are no longer allowed.

1 This number is an internal reference number and can be quoted to your local Support Department should further information on an item be required.

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