Tekla Structural Designer 2016 Service Pack 1

Last updated November 20, 2017 by Tekla Structural Designer Development Team tekla-product-development-tsd-team-ug@trimble.com

Tekla Structural Designer 2016 Service Pack 1

This service pack should be installed to ensure optimum function of the program. Several improvements and issues have been resolved including:

Issues with Associated Bulletins

  • Model opening - Panel Loads - there is potential for some panel loads to be removed when a model file is opened. No warning is issued in this circumstance so the engineer could miss the fact that some loads had been removed . See Product Bulletin PBTSD-1604-1 (12052).
  • Wind Wizard Loads - Head Code United Kingdom (BS) and Wind Loading to BS 6399-2 1997 using the Hybrid Method. In certain circumstances, the design wind speed Ve and hence wind loads could be significantly underestimated for sites fully town and on the edge of town. See Product Bulletin PBTSD-1605-1 (51051).

General & Modelling

  • Enhancements to performance and stability particularly related to tolerances.
  • Model opening - program error on opening - the checking and updating model routines which run when a file is opened have been improved to address invalid data such that no error occurs (12186, 12178, 12004).
  • Inserting Construction levels - a program error could occur when inserting a new level in a model where levels were not correctly referenced (12117).
  • Property sets - Concrete Walls - a program error could occur when attempting to select a saved property set created in an earlier version of the program prior to creating a wall. The workaround - no longer required - was to delete and recreate the property set (12028).
  • Property sets - Composite Beams - a program error occurred when applying a property set created from an existing composite beam where no composite slab was attached. Since composite beam properties also include those of the attached composite slab they were thus incomplete where no slab existed. This circumstance is now catered for (11928).
  • Copying and Moving - Steel column - rarely the copy or move process could fail with and Invalid Operation error requiring a member to be deleted and re-input (12002).
  • Deleting Members - Brace patterns - a program error could occur when deleting a brace pattern in a 2D Frame view. This occurred where the brace pattern was created in the 3D view when the 2D Frame in question did not yet exist. The workaround - no longer required - was to delete the pattern in the 3D view (11928).
  • Concrete Columns - Alignment and section - editing the alignment for a single stack of a column with multiple stacks which had different sections sizes for some or all stacks, caused all stacks to be assigned the same section size (11926).
  • FE Slab meshing - rarely, meshing of slab panels failed to complete local to stacked concrete columns with different rotation angles (11920).
  • FE Wall meshing - where a concrete walls was intersected within its length by another, the wall meshes were not fully connected between floors. Since intersecting walls are fully connected at slabbed floor levels (by diaphragm action and wall beams) the effect of this on shear wall forces in normally proportioned multi-storey buildings is likely to be minor. If the engineer wished to ensure full connection however, it was necessary to split FE walls such that they ended at the point of intersection. This has been addressed in the Service Pack and intersecting wall meshes now connect fully between floors (12048).
  • Graphical display - decomposed loads - loads decomposed to walls, while applied, were not displayed in the Sub-structure views (11713).
  • Move Model - US Units - it was not possible to enter desired distances in the Target X and Target Y entry boxes due to incorrect handling of feet and inch units (12189).
  • Steel Section Data - Japanese Sections - for Nippon Hyberbeam NSHYBER sections, section data was listed under the incorrect section size designation. This has been corrected in an updated database file which is available on request (12231).


  • Combination Generator - Load Combinations to ASCE 7-10 - for the generated LRFD combination of 1.2D+L+1.6S the default service factor was incorrectly set = 1.0 for both live and snow. The factor for live is now set correctly = 0 (12441).
  • Combination Generator - Load Combinations to ASCE 7-10 - for combinations in which wind is combined with dead, live, snow and/or roof, the service factor was incorrectly set = 0.7. The factor for Wind is now set correctly = 0.45. For the dead and wind (only) combination no service factors could be set. These are now activated and set to a default value of 0.6 (12441).
  • Panel loads - Varying Area Load - rarely, a varying area load applied to a concrete wall could cause analysis results numerical errors of the form NaN (not a number) for 1D and 2D elements (11859).


  • Concrete Walls - wall beams could be generated with invalid section properties producing a validation error; a zero or negative major axis inertia value was calculated due to an incorrect listing of floors in wall properties. This was a rare and geometry-specific issue. Should this occur it can now be fixed by running the Analysis/ Update Wall Beams command (12097).
  • Concrete Beams and Slabs - validation has been enhanced to warn for the following circumstance; where the solid geometry of a beam is parallel to - or nearly so - and touches the edge of a two-way slab, but the beam centre line is beyond the slab edge, which would result in the beam and slab not being connected in the analysis model (11900).
  • Validation Process - a program error could occur during validation in the following circumstance; invalid data existed relating to concrete wall level “Supporting” setting. The validation routines have been enhanced to prevent this (11964).

Analysis & Results

  • 1st Order Linear - Seismic Loading - the analysis process failed to complete due to incomplete Seismic Load case results (12024).
  • 1st Order Linear - Concrete members - rarely, analysis failed to complete where model geometry was such that rigid zones produced very short analysis elements. Additional functionality has been added to check for this and automatically turn off rigid zones locally to prevent this occurring (11991).
  • FE Chasedown - analysis failed to complete due to incorrect processing of steel braces set to be inactive. The process now correctly ignores any such inactive brace elements (11976).
  • Solver model - column section rigid elements - rarely rigid elements which model the column section size in the FE slab model could extend beyond the column section dimensions, producing incorrect results (11961).
  • Load Analysis View - Concrete beams - rarely an error could occur for multi-span concrete beams preventing the viewing of a beam’s Load Analysis results (12090).
  • Global Analysis results - where large lateral nodal loads were applied to column nodes, unrealistically high column moments and shears could result for any EHF combinations which included these loads. The workaround - no longer required - was to instead apply member loads at the end of the column stack (11935).
  • Loading Summary - the load summary totals did not tally when 1st Order linear and Chasedown analyses were compared; the Chasedown totals being higher. This could occur where a column was within or at the edge of an FE wall, meaning some supports where common to both the column and wall elements causing double-counting of the reaction at these supports in the Chasedown loads (11748, 11665).


Head Code US

  • Design Status and Review/ Tabular Data - Sway Results - after design is run, Sway results are no longer listed in the Status Tab of the project workspace under the “Design” heading, nor in the Review/ Tabular Data, as they are not relevant to the US Head code (12132).
  • Concrete Wall design - the interactive design dialog did not display the correct pass status when an atypically large value of cover was input (12157).
  • Steel Design - the auto-design process could fail for some columns and beams producing an incorrect and inconsistent design status following the Design Steel (Static) process (12026).

Head Code BS

  • Steel Beam Design - Cantilevers - the design process failed with an “Index out of range” error which could occur for combinations set as Service only rather than both Strength & Service (12142).
  • Steel Beams - the Combined Buckling check could produce an incorrect fail status and error “NOT A NUMBER” for beams with the following settings and applied load; top flange restrained, bottom flange un-restrained, biaxial bending, moment reversal (12045).

Reports & Drawings

  • Member Reports - RSA Analysis & Design - force diagrams can now be included for RSA Analysis (12114).
  • Export to Word and PDF - when exporting a report to either Word or PDF, the header page number was the fixed value of the page displayed prior to export and did not update for subsequent pages. This only occurred where certain edits had been made to the default report header (12185).
  • Material Lists - report failed to generate when certain concrete columns with invalid or unexpected data were include (12151).
  • Slab Details Drawing - rarely, the All and Top detail drawing failed to create if slab items existed with an atypically small plan dimension (11938).
  • Wind Data - the report failed to generate when one or more levels did not contain any loads deriving from Wind Loadcases (12152).


The number in brackets after an item denotes an internal reference number. This can be quoted to your local Support Department should further information on an item be required.

32bit (x86) and 64bit (x64) Versions

Service packs are available for both 32bit (x86) and 64bit (x64) versions of Tekla Structural Designer. Before downloading, check which version you have currently installed via the Information button at the top right of the Tekla Structural Designer window, then download the appropriate service pack

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