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Tekla Structural Designer 2016i Service Pack 2

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

Tekla Structural Designer 2016i Service Pack 2

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

  • Flat Slab Punching Checks - Head Codes BS and Eurocode (All Countries/ Regions) - this issue applies only to punching checks inside slab column patches with reinforcement set to “None” and reinforcement only in the slab panel (which is unusual for typical flat slabs, but not impossible).  In these circumstances the tension reinforcement ratio ⍴ used in the punching shear checks was double the correct value in both directions.  Where this occurred it would produce an unconservative result for the slab shear capacity without reinforcement. See Product Bulletin PBTSD-1611-1 (13072).

Enhancements & Fixes

General & Modelling

  • File Opening - an exception could occur when unexpected or invalid data was encountered during file opening (12991).
  • Editing Geometry
    • Slab items - where a slab item overlapped another, it was difficult to select a selected slab item’s node in the overlapped area via the tool tip Select Entity list in order to move its position.  This issue only affected the first release of 2016i and SP1 (13123).
    • Members - where a selected member’s end node was overlapped by the rendered geometry of another member, it was difficult to select the node via the tool tip Select Entity list in order to move its position.  This issue only affected the first release of 2016i and SP1 (13074).
  • BIM Integration
    • Cellbeam - in some circumstances a CBXX Bay Units file produced by the Cellbeam Export process would fail to import into Cellbeam v10.2.1 (13090).
    • Cellbeam - Westok cellular beams supporting precast deck slab items would not export to Cellbeam (52169).
    • Cellbeam - Westok cellular beams with the Construction property set to “Non-composite” would not export to Cellbeam (52060).
    • Structural BIM Import - in some circumstance a beam defined as a cantilever was imported with the releases set to pin-pin rather than the correct fully-fixed and free (51876).
    • Structural BIM Import - a program error would result during import where the CXL import file contained a steel deck type that was not recognized.  In this circumstance unrecognized deck types are now flagged during import and the user can select from the list available in Tekla Structural Designer (52007).
    • Update an Existing Model - Column rotation - where a column was very slightly non-vertical its rotation angle could be incorrectly changed by the Structural BIM import when using the option to Update an Existing Model (52119).
    • Update an Existing Model - an Import error could result during the BIM import for models in which one or more supports existed in a level above the base in which sub models supports were created (52128).
    • Update an Existing Model - a program error could result for models with composite slabs when importing a CXL file in which the metal deck profile of one or more slab items was set to the Standard No-name profile (52144).
  • Analysis Elements - when the characteristic of a concrete member was changed to analysis element, the material was incorrectly set to ‘General’ rather than Concrete.  This could produce a program error when viewing analysis results (51972)
  • Composite Beams - for composite beams placed in an inclined plane the metal deck span direction was incorrectly set at 90 degrees to the correct direction in the member properties and the member view (13051).
  • Rigid Diaphragms - Column Nodes - in some circumstances for flat slab models in which some slab items had curved edges (generally where the curvature value was small), some column nodes within the slab area were not correctly included in the slab’s rigid diaphragm, potentially causing errors in analysis (13060, 13066).
  • Concrete Walls - Supports - when a spring stiffness was set for one or more directions for a wall support an internal solver error occurred during analysis.  This issue only affected version 2016i SP1 (version number 16.1.1.81) (13085, 13093).
  • Property Sets - Supports - a program error occurred when a previously saved property set for a support was selected in the Properties Window drop list during the Support Creation operation (52102).
  • Copy & Delete - Columns - where a column has a support, the support is now automatically selected during the copy and delete operations.  The user is then able to choose whether they wish to include the support in the operation (52105).
  • Scene Content - Member creation - in member creation mode, the scene content options for all member types were set to on and locked so could not be changed while in the mode.  This prevented engineers from setting a deliberate selection of member types off to aid with modelling prior to creating members.  Now, while creating members, only the specific member type the user is creating is set to on and all other types can be activated/deactivated as desired.  This issue only affected the first release and Service Pack 1 of version 2016i (52168).
  • Bearing Walls - in some circumstances a program error could occur when a bearing wall was deleted (12958).
  • Slab Patches - Panel Patch - a program error could occur when attempting to add a panel patch in a 3D view (13144).
  • Construction Levels - Deleting - in some circumstances a program error could occur when construction levels were deleted (13049).
  • Selection - Window Selection - when drawing a selection window with the mouse from left to right, only objects fully enclosed within the window should be selected.  This rule was not being correctly applied to concrete walls which were being selected when only intersected by the window (52095).

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  • Wind Wizard:
    • BS and EC Head Codes - a check of the defined building height is now added in the Wind Wizard to ensure this does not exceed 200m, as this is beyond the scope of the design codes (13048).
    • When the Wind Wizard > Ground level in model was set above the Base level, a program error could result when using the Edit Zones… option for Wind walls (13032).

Validation

  • Roof Panels - in some circumstances a program error could occur on validation where a roof panel was incorrectly created such that one or more of its edges did not quite align with the members along that edge (12934, 52022).
  • Analysis Elements - a validation error is now issued where analysis elements exist that are coincident with the elements of a concrete beam, which would cause analysis errors (12848).
  • In some circumstances, where a number of columns were created with stacks inside a concrete wall producing an element collision, a program error could occur on validation (52115)

Design

General

  • Isolated Foundations -  Head Codes BS and Eurocode (All Countries/ Regions) - for both Pile Caps and Pad Bases for some shear checks the shear resistance at the design section was not limited to the maximum allowable shear resistance (Cl 3.4.5.8 of BS-8110 and Section 6.2.2(6) of EN 1992-1-1:2004).  For Pile Caps the issue applied only to the shear capacity check and pile one-way shear checks, while for Pad Bases it applied only to the shear check at d from the column face.  A product bulletin has not been issued because it seems highly unlikely this correction would be significant for any realistic pile cap or pad base arrangement (51981, 52015).
  • Pile Cap Design:
    • BS & EC Head Codes - One-Way Shear - for square piles, the expression for enhanced shear resistance at the critical section incorrectly included a term (lp/2) producing an incorrect and too low resistance.  This could produce a fail status when the pile cap was adequate for one-way shear and lead to auto-design for depth producing a depth much larger than that required (12952).
    • All Head Codes - One-Way Shear - enhancements made to the pile location checks ensure the correct one-way shear check is performed for corner piles (52030).
    • All Head Codes - Punching checks - enhancements made to the pile location checks ensure the appropriate punching shear perimeters are checked.  Previously, for some arrangements of piles and column positions, the column and pile punching checks could consider perimeters that were not required (52028, 52038).
  • Composite Beams - All Head Codes - when assessing moments on composite beams, the program now always uses the Ignorable forces limit value for major axis moment (Design > Options > Design Forces > Ignore Forces Below).  Prior to this very small negative moments could prevent composite design being undertaken while very small positive moments could produce checks and/ or warnings that were not required (51912, 52089).
  • Concrete Beams & Columns - for the check or design processes run via the right-click context menu of the Design Groups tree, the memory requirements have been reduced producing potential savings in the check/design time (51833).

Head Code BS

  • Composite Beams  - where a composite beam had no significant design forces, following a design the status was given as 'Unknown' and the results summary showed no details.  A pass status is now assigned and the design details show a pass status or “Not required” for each check as appropriate (52084).

Head Code EC

  • Pile Caps - Design Details - Maximum Spacing for crack control - the maximum crack width set is now given in the design details for the maximum reinforcement spacing determined from this (to Section 7.2.3(2) Table 7.3N) making the results consistent with those of concrete beams (13056).
  • Concrete Member Design - the precision of the reinforcement strain value εc3 shown in design details is now governed by the ‘strain’ precision setting (Settings & Model Settings > Units) which defaults to a precision = 5.  Thus a strain of 0.00175 is now displayed to this precision rather than to the previous precision of 3 which displayed a value of  0.002.  Note that this affected only the value displayed in the design details not that used in actual calculations.  (52057).

Head Code US

  • Seismic Design - Concrete Beams - where a beam span supports a concrete wall the clear span length is zero and the Stirrups check for seismic design details displayed a “NOT A NUMBER” error.  This circumstance is beyond the current scope of the Seismic design and an appropriate message is now displayed to this effect  (52045).
  • Flat Slabs - Punching Checks:
    • The depth and breadth of both the closed and effective perimeters are now reported in the design details, so it is clear when these are different for corner and edge cases (52093).
    • The calculation of the coefficient ?f for the fraction of moment transferred by flexure (ACI 318-11:2011 Section 13.5.3.2 equation 13-1) is corrected to account for corner and edge cases and perimeters beyond d/2 (52096).
  • Steel Beam Design - Axial compression - for copied beams in some circumstances, due to a tolerance issue, not all the correct buckling lengths and checks were considered in the design for axial compression (52094).

Reports & Drawings

  • Drawings - Slab/Mat Detail - in some circumstances when the punching shear labels layer was included, the drawing (DXF) file produced would not open in AutoCad or a DXF viewer (13030).
  • Drawings - General Arrangement - a new layer “Slab and Mat Openings” is added to the General Arrangement layer options to enable the inclusion of slab openings separately from Slab and Mat Panel Edges (12982).
  • Member Report - Summary - Composite Beams - an error could occur preventing report generation for the perpendicular span direction case where the stud layout was Non-uniform and a length of studs encompassed only a single rib such that the “Group spacing x rib” value was blank (12929).
  • Beam Detail Drawing - the drawing would fail to create in the unusual circumstance of a very short span existing between supporting beams which were slightly offset and the sections of which actually overlapped (12978). 
  • Model Reports - a selected Model Report style now remains selected in the Report Ribbon drop-list when edits to the report contents are made.  Previously the selected style was reset to that at the top of the list when the Report Contents dialog was closed (52161).

Notes:

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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