Support articles

Tekla Structural Designer 2017 Service Pack 5

This release will upgrade your Tekla Structural Designer installation to version number 17.0.5.56 and should be installed to ensure optimum function of the program.   It includes a number of enhancements and issue resolutions as detailed below.  Please note that Tekla Structural Designer 2017i is also now available.  This incorporates a number of new features, enhancements and issue resolutions which it was not possible to include in this Service Pack.  Hence we recommend you consider updating to the 2017i version as soon as is practicable.  See the 2017i Release Notes for more information on
by Tekla Structural Designer Development Team
4

Tekla Structural Designer 2017i Service Pack 1

This release will upgrade your installation to Tekla Structural Designer 2017i Service Pack 1 version number 17.1.1.67 and should be installed to ensure optimum function of the program.   It includes a number of issue resolutions as detailed below. If you are upgrading from a version earlier than the most recent Tekla Structural Designer 2017i (version 17.1.0.64) you can find details of enhancements and fixes included in all previous releases in Tekla User Assistance (TUA) and Tekla Downloads.  You will find all the main releases listed in the Knowledge base area of TUA under Release notes
by Tekla Structural Designer Development Team
0

Technical Information: Integration between Tekla Structural Designer and Tekla Structures

These notes cover the integration process when integrating models between Tekla Structural Designer and Tekla Structures. When considering the integration of Tekla Structural Designer and Tekla Structures it is important to understand that the information transferred is essentially the physical information associated with the structure - e.g. geometry, section sizes and grade, number of studs and slab thicknesses etc. Tekla Structures allows engineers to quickly and easily create accurate structural models complete with information that offer value from design to construction completion.
Requires Tekla Maintenance
by Marcus Mitchell
0
  • tekla structural designer
  • tekla structures
  • integration

Tekla Structural Designer product bulletin September 2017 (PBTSD-1709-2)

Résumé of issue This issue relates to the design of concrete walls to all Head Codes. The concrete wall properties setting for the wall to be considered as restrained at a floor level, although active during program operation, was not preserved by saving. Hence, when a file was closed and reopened, any edited settings would be reset to their original values. If missed by the engineer, this could produce an unconservative result. Occurrence This issue relates to all versions since Tekla Structural Designer 2015 (version 15.0.0.40) released in March 2015.
Requires Tekla Maintenance
by Tekla Structural Designer Global Support
0

Tekla Structural Designer product bulletin September 2017 (PBTSD-1709-1)

Résumé of issue This issue relates to Imposed Load Reductions and the analysis & design of concrete walls to Head Codes BS (all countries) and Eurocode (all countries). The concrete wall properties setting for floors to be counted as supported, although active during program operation, was not preserved by saving. Hence, when a file was closed and reopened, any edited settings would be reset to their original values. If missed by the engineer, this could produce an unconservative result in the following circumstances: Buildings of > 2 stories. Imposed Load Reductions were enabled for
Requires Tekla Maintenance
by Tekla Structural Designer Global Support
0

Announcement: End of life for 32-bit version of Tekla Structural Designer

It is intended that Tekla Structural Designer 2017i will be the final version that supports 32-bit operating systems. Since 32-bit systems can only address approximately 3GB of RAM they do not meet the 2017i or previous minimum system requirements for Tekla Structural Designer which have been in place since version 2015i (released Sept 2015). Hence, although 2017i and all previous versions of Tekla Structural Designer will install on a 32-bit operating system, its performance can be significantly compromised due to insufficient RAM and so we DO NOT recommend this. When you install Tekla
Requires Tekla Maintenance
by Tekla User Assistance Team
0

Tekla Structural Designer 2017i guides & handbooks

Please find below a list of the guides and their version relating to the attachments Installation & Licensing Title Software installation & licensing guide User Guides   Title Product version Help version User Guide - US English 17.0 5.1.0.3 User Guide - UK English 17.0 5.1.0.3 Engineer's Handbooks Title Product version Help version Engineer's Handbook - ACI/AISC 17.1 5.1.0.3 Engineer's Handbook - Australia Standards 17.1 5.1.0.3 Engineer's Handbook - British Standards 17.1 5.1.0.3 Engineer's Handbook - Eurocode 17.1 5.1.0.3 Reference
Requires Tekla Maintenance
by Tekla User Assistance Team
5

Tekla Structural Designer 2017i system requirements

Please note It is intended that Tekla Structural Designer 2017i will be the final version that supports 32-bit operating systems. Read more. Tekla Structural Designer has been written with the latest tools from Microsoft and other 3rd parties and requires the following PC specification. Minimum PC spec CPU: Intel Core i5 2.0GHz (or dual/quad core equivalent) Memory: 16GB OS: Windows 7 Graphics: 1,600 x 900 widescreen resolution Recommended PC spec CPU: Intel Core i7 2.0GHz (or dual/quad core equivalent) Memory: 32GB OS: Windows 7/8.1/10 64-bit Graphics: 1,900 x 1,200 widescreen resolution.
by Tekla User Assistance Team
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Tekla Structural Designer 2017i release notes

Please note It is intended that Tekla Structural Designer 2017i will be the final version that supports 32-bit operating systems. Read more. This release will upgrade your Tekla Structural Designer installation to version number 17.1.0.64 and should be installed to ensure optimum function of the program.   It includes a number of significant new features together with several enhancements and issue resolutions as detailed below.  Update: 18th January 2018 The release now includes Service Pack 3 and will upgrade your installation to version 17.1.3.84. Please read the related Service Pack
by Tekla Structural Designer Development Team
3.533335

Why is Westok cellbeam telling me my combinations do not match EN1991?

Question I have generated my Combinations in Tekla Structural Designer. Why, when I export my beam to Westok's Cellbeam software, does it tell me these combinations do not match the Eurocode UK combinations?   Answer The Westok Cellbeam expects to see 3 combinations generated using equations 6.10(a&b) from table A1.2(B) in EN1990. These combinations are generated to 2 decimal places, so the combinations expected would be: ULS 1.35 Dead + 1.05 Imp + 1.35 sup ULS 1.25 Dead + 1.5 Imp +1.25 sup SLS 1 Dead + 1 Imp + 1 sup       In Tekla Structural Designer we give users the option to generate
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • westok
  • Cellbeam
  • export
  • Combinations

Validation/Solver Error: Diaphragms - Too few nodes in a rigid diaphragm

Question I am getting a “too few nodes in rigid diaphragm” error for a Mat foundation I created. I note that the Mat is not meshing for some reason when viewing the Solver scene view and presume this is why there are insufficient nodes? Answer To form a rigid diaphragm there must be at least three non-collinear nodes (that are not supports). A Mat foundation actually has supports at every node so a diaphragm is not necessary/possible to construct. The solution is to select the Mat slab and uncheck the Include in Diaphragm option. A Mat is meshed in the 3D analysis, so will act as a diaphragm
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • Rigid Diaphragm
  • validation error
  • Solver Error
  • Mat
  • Raft

We have an existing Fastrak Building Designer model file and would like to update/upgrade and open it in Tekla Structural Designer. How can we do this?

Question We have an existing Fastrak Building Designer model file and would like to update/upgrade and open it in Tekla Structural Designer. How can we do this? Answer We recommend that you complete the model in Fastrak Building Designer as there is not a direct converter to move the model to Tekla Structural Designer. If you do want to move the model geometry from Fastrak Building Designer, however, this can be done via File > Export to Revit Structure (you do not need Revit), and then within Tekla Structural Designer - Home ribbon >BIM Integration group > Structural BIM Import
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • import
  • Fastrak Building Designer
  • FTBD
  • .ftbd
  • export

Why do the Vierendeel bending results differ between Tekla Structural Designer and the Kloeckner Westok Cellbeam software?

Question Why do the Vierendeel bending results differ between Tekla Structural Designer and the Kloeckner Westok Cellbeam software? Answer There is a difference between Tekla Structural Designer and Kloeckner Westok Cellbeam in the distribution of the loading for the Vierendeel bending checks. Both checks will use the Sahmel method at 2.5 degree intervals around the opening and both pieces of software will calculate the critical angle. In determining the shear distribution for composite beams, both programs take into account the resistance of the slab. The Kloeckner Westok software adjusts
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • Vierendeel
  • westok

When is it ok to average moments for slab patch designs?

Question When is it ok to average moments for slab patch designs? Answer Within the Properties window for a patch there is the option to average the moment over the width of the patch or patch strip.   This option exists to counteract locations of localized high moments within the slab. These areas of high moments, known as singularities, are a product of the Finite Element Method and occur in all software employing this analysis type. Singularity's will tend to occur at the following locations: Walls ending within the slab Openings Columns Point supports Concentrated loads The image below
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • Patch
  • Strip
  • Column strip
  • Average
  • Singularities

When designing slabs, what size patches should I use?

Question When designing slabs, what size patches should I use? Answer The purpose of patches within Tekla Structural Designer is to allow the engineer to ring fence areas of high moment in order to produce a more economic design. If you are placing patches using the maximum setting then you can place patches of whatever size you see fit since the maximum moment within the patch will always be designed for. The problem arises if you are using the average setting. The larger the width of slab used, the lower (more often then not) the average moment will be. If the width of slab is too large
Requires Tekla Maintenance
by Trimble Solutions UK
0
  • Patch
  • Strip
  • size
  • Column strip

Tekla Structural Designer product bulletin June 2017 (PBTSD-1707-1)

Résumé of Issue This issue relates to Isolated Foundation Pad Base design for the following Head Codes; BS (all countries), India and United States (ACI).  For rectangular bases the Passive Resistance used in the Sliding check is incorrect in that the resistance for the X-direction is transposed with that for the Y-direction.  We note the following: There is no impact if square bases are used throughout. Passive resistance is only a significant part of sliding resistance when vertical load is very low. Occurrence This issue relates to all versions since Tekla Structural Designer 2016 (version
Requires Tekla Maintenance
by Tekla Structural Designer Global Support
0

I am trying to define a custom section in Tekla Structural Designer and I do not recognise some of the properties. What are they?

Question I am trying to define a custom section in Tekla Structural Designer. There are some properties which I am not familiar with such as AL, K1w, nw etc. (highlighted in the screenshot below). Could you please advise how these values can be calculated by the user?   Answer These are all Section Properties. The K and n factors come about from the SCI P202 publication “Steelwork Design Guide to BS5950-1:2000 Volume 1 Section Properties Member Capacities”. Refer to Section 3.2.6 Plastic modulus (S) for the formulae used to calculate the values. They can also be found in the interactive Blue
Requires Tekla Maintenance
by Trimble Solutions UK
4.333335
  • Custom section
  • properties
  • K1
  • n
  • A

Non linear Relaxation Factor FAQs

What is the purpose of Relaxation Factors? For a small number of models that are mostly symmetrical, and rely on tension only braces for lateral stability, you may find that for gravity only loadcases and combinations, a first order non linear analysis will fail to solve. This is often due to all braces becoming inactive during the analysis, rendering the structure unstable. Relaxation factors allow the analysis to complete successfully, by determining the state of each brace gradually, over the course of the non linear analysis. This is achieved by altering the stiffness of each brace
Requires Tekla Maintenance
by Tekla User Assistance Team
4
  • relaxation factor

Tekla Structural Designer 2017 Service Pack 4

This release will upgrade your installation to Tekla Structural Designer 2017 Service Pack 4 version number 17.0.4.55 and should be installed to ensure optimum function of the program. It includes a number of issue resolutions as detailed below. If you are updating from a version earlier than Tekla Structural Designer 2017 Service Pack 3 (version 17.0.3.50) you can find details of enhancements and fixes included in all previous releases in Tekla User Assistance (TUA) and Tekla Downloads.  You will find all the main releases listed in the Knowledge base area of TUA under Release notes while
by Tekla Structural Designer Development Team
3

Tekla Structural Designer product bulletin June 2017 (PBTSD-1706-2)

Résumé of Issue This issue relates to the Design (Static) and Analyse All (Static) processes and the following Head Codes which feature an Amplified forces analysis method, Eurocode (all countries), BS (all countries) and Australia. The issue only occurs when this Amplified forces method is selected for Design. In some circumstances the amplification factor (termed kamp) is not being applied. It is clear when the issue occurs as it is flagged by warnings in the Process Window that Total reactions vs Applied loading do not balance and errors in the Load Summary check. Such errors and warnings
Requires Tekla Maintenance
by Tekla Structural Designer Global Support
0

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