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I have a Validation > Model > Loads > “Decomposition to multiple diaphragms” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > Loads > “Decomposition to multiple diaphragms” warning. Why do I get this and how do I resolve it? Answer A Decomposition to multiple diaphragms validation warning occurs when more than one diaphragm is identified on the same level and the second smaller diaphragm is greater than 5% of the wind profile width. The tooltip indicates this to you when you hover over Decomposition to multiple diaphragms or any problem simple wind load item listed within the branch. You can double click the Decomposition to multiple diaphragms or individual simple
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by Tekla Structural Designer Development Team
0
  • Validation-Model-Loads
  • validation
  • warning
  • Decomposition to multiple diaphragm

Tekla Structural Designer 2018 Service Pack 2

This release will upgrade your Tekla Structural Designer installation to version number 18.0.2.05 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.  If you are upgrading from a version earlier than Tekla Structural Designer 2018 Service Pack 1 (version 18.0.1.10) 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: Tekla User Assistance Main version
by Tekla Structural Designer Development Team
5

I have a Validation > Model > General > “Invalid member group” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General> “Invalid member group” warning. Why do I get this and how do I resolve it? Answer An Invalid member group validation warning occurs when members exist in the same group but they no longer meet the group rules. The tooltip indicates this to you when you hover over Invalid member group or any problem element listed within the branch. Elements can be grouped for design. This is controlled via the Design ribbon tab > Design Options > Design groups page. By default concrete beams and columns are grouped for design. For further
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • validation
  • warning
  • Invalid Member Group

When I try to create a drawing via the Draw ribbon or right click context menu "Generate detailed drawing", the model crashes. Why is this and how can I resolve it?

Question When I try to create a drawing via the Draw ribbon or right click context menu "Generate detailed drawing", the model crashes. Why is this and how can I resolve it?     Answer When you create a drawing in Tekla Structural Designer it first generates the drawing and saves it as a .dxf file in the chosen file location. Once the dxf file is saved, Tekla Structural Designer then opens the application that is associated with the DXF file. Autodesk uses AcLauncher.exe to control file associations and if there is a problem with this then the application cannot be found and an exception
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
5
  • DXF
  • Create
  • drawing

I have a Validation > Model > General > “Discontinuous wall supported by unmeshed slab” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Discontinuous wall supported by unmeshed slab” warning. Why do I get this and how do I resolve it? Answer By default a slab is replaced with a diaphragm in the 3D Building analysis (First-Order linear analysis). This means that the wall intended to be supported by the slab is unsupported.   If we hover over one of the problem items a tooltip is displayed “Where a discontinuous wall is supported by a slab, the slab must be meshed in the 3D building analysis and Grillage chase-down.” We can double click the “Discontinuous wall
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • validation
  • warning
  • Discontinuous wall supported by unmeshed slab

I have a Validation > Model > General > “Opening in slab above member” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Opening in slab above member” warning. Why do I get this and how do I resolve it? Answer An Opening in slab above member validation warning occurs if you have defined an opening in a slab that cuts into a concrete member. Tekla Structural Designer will allow you to place an opening anywhere on a slab - this includes cutting into a member, however, no account is taken of this. There is no reduction in the column/beam/wall section area to account for the opening. Because of this, Tekla Structural Designer warns about it - it is then
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • validation
  • warning
  • Opening in slab above member

I have a Validation > Model > Diaphragms > “Rigid diaphragms on sloping slabs” error. Why do I get this and how do I resolve it?

Question I have a Validation > Model > Diaphragms > “Rigid diaphragms on sloping slabs” error. Why do I get this and how do I resolve it? Answer A rigid diaphragm on sloping slabs validation error occurs when a slab is defined on a sloped plane and the Diaphragm option is set to Rigid. Rigid diaphragms have infinite in-plane stiffness and zero out of plane stiffness properties and therefore they neither exhibit membrane deformation nor report the associated forces. When a rigid diaphragm is specified, nodal constraints are automatically applied to all nodes within the diaphragm
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • validation
  • error
  • Rigid diaphragm on sloping slabs

I have a Validation > Model > General > “Raised support provides lateral restraint” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Raised support provides lateral restraint” warning. Why do I get this and how do I resolve it? Note. This is a new validation warning introduced in Tekla Structrual Designer 2018. Prior versions did not flag this issue to your attention. Answer A raised support is a support that occurs on a higher (raised) level than the lowest support in the model. A couple of situations where this warning can arise are listed below: Where we have multiple foundation levels in the model. Where we are trying to model support from an adjacent
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
4
  • Validation-Model-General
  • validation
  • warning
  • Raised support

I have a Validation > Model > Supports > “Support clashing with member length” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > Supports > “Support clashing with member length” warning. Why do I get this and how do I resolve it? Answer If we hover over one of the problem supports a tooltip is displayed “A support has been defined at a position other than the base of a column/wall - review model” We can double click the “Support clashing with member length” warning or an individual support listed under the branch to highlight the supports or support in the model. Alternatively, you can right click the item and choose Highlight Items from the context menu. The supports
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • Support clashing with member length
  • validation
  • warning

I have a Validation > Model > General > “Invalid natural frequency effective width” error. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Invalid natural frequency effective width” error. Why do I get this and how do I resolve it? Answer This validation error will appear alongside an "Invalid effective width" error. The resolution for both is the same so please refer to the article I have a Validation > Model > General > “Invalid effective width” error. Why do I get this and how do I resolve it?
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • Invalid Natural Frequency Effective Width
  • validation
  • error

I have a Validation > Model > General > “Invalid effective width” error. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Invalid effective width” error. Why do I get this and how do I resolve it? Answer In the screenshot below two beams have been identified as having an invalid effective width issue. Beam 1 is defined as a beam of Construction "Composite beam", however, the slab that is placed on the beam is not a slab of Type "Composite slab" and hence the error. The slab above the composite beam needs to be a composite slab so that the data of the two objects can interact together. Alternatively, the beam needs to be Construction "Non-composite
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • Invalid Effective Width
  • validation
  • error

I have a Validation > Model > General > “Grid is not quite aligned with building directions” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Model > General > “Grid is not quite aligned with building directions” warning. Why do I get this and how do I resolve it?   Answer You specify the Building Directions for the model. These by default follow the global X and Y directions, but can be set via the Project Workspace > Structure window by selecting the Structure branch. See the linked article in the right pane for further information on Building directions.   The warning will result if a gridline is placed into the model which is less than 0.01 degrees out of alignment with the Building
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Model-General
  • validation
  • warning

Tekla Portal Frame Designer 18 & Tekla Connection Designer 18 Service Pack 1

This release will upgrade your Tekla Portal Frame Designer & Tekla Connection Designer installation to version number 18.0.1.0 and should be installed to ensure optimum function of the program.   Licensing & Installation Licensing - no new license is required for this version. Installation - this service pack requires Tekla Portal Frame Designer 18 & Tekla Connection Designer 18 to be installed and will upgrade this to version 18.0.1.0. New Features Tekla Connection Designer Splice connections can now be designed and exported from Tekla Structural Designer. Please note this new
by Martin Roclawski
1

I have a Validation > Analysis > General > “Material Poisson’s ratio is invalid for 2D elements (0 < v < 0.5)” error. Why do I get this and how do I resolve it?

Question I have a Validation > Analysis > General > “Material Poisson’s ratio is invalid for 2D elements (0 < v < 0.5)” error. Why do I get this and how do I resolve it? Answer Tekla Structural Designer uses the theory of isotropic linear elasticity so the modulus of elasticity, E is related to the shear modulus, G by way of Poisson's ratio, v. Poisson’s ratio is the ratio of lateral strain to longitudinal strain in a material subjected to loading. The Poisson's ratio for a wide range of materials fall within a lower limit of -1.0 and an upper limit of +0.5. Since most common
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Analysis
  • Poisson Ratio
  • validation
  • error

I have a Validation > Analysis > First-order linear > “Non-linear elements changed to linear”” warning. Why do I get this and how do I resolve it?

Question I have a Validation > Analysis > First-order linear > “Non-linear elements changed to linear” warning. Why do I get this and how do I resolve it? Answer “Non-linear elements changed to linear”, indicates that elements have been defined in the model as non-linear i.e. able to withstand either tension or compression only, (which requires non-linear analysis) but a linear analysis has been undertaken. Linear analysis cannot cater for non-linear behaviour, and so non-linear elements are converted to linear elements to allow a solution. It is likely the analysis results would
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
5
  • Validation-Analysis
  • validation
  • Non-linear
  • Linear
  • warning

When I include a saved view in the report it is too small. Can I make the image bigger?

Question When I include a saved view in the report it is too small. Can I make the image bigger?      Answer There a few things that can be done to improve the size of the image (saved view) included within the report. We will run through a number of options, however, some will have a more profound effect than others. By default the image is set to be 90% of the page width. You could increase this percentage to widen the picture. This can be achieved via the Report ribbon tab > Appearance group > Settings > Document Options page.        You could change the orientation of the
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Saved View
  • Image
  • Picture
  • view

I have a Solver > Model > Analysis Properties > “Invalid Material Properties - Poisson’s ratio is X.XXX” error. Why do I get this and how do I resolve it?

Question I have a Solver > Model > Analysis Properties > “Invalid Material Properties - Poisson’s ratio is X.XXX” error. Why do I get this and how do I resolve it?   Answer Background The Material database contains the concrete grade properties when the chosen material is used in the model. In the screenshot below, the Modulus of elasticity, E is specified as 34000 N/mm2 for C32/40 concrete.    Tekla Structural Designer uses the theory of isotropic linear elasticity so the modulus of elasticity, E is related to the shear modulus, G by way of Poisson's ratio, v. Poisson’s ratio is the
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
5
  • validation
  • error
  • Invalid Material Properties
  • Poisson Ratio

I have a Validation > Analysis > General > Supports > "No supports defined in model" validation error. Why do I get this and how do I resolve it?

Question I have a Validation > Analysis > General > Supports  > "No supports defined in model" validation error. Why do I get this and how do I resolve it?   Answer This message is self explanatory. No supports exist in the model (i.e. under columns), and hence the structure is unsupported. Applied loads cannot go to ground and hence the structure is not in equilibrium. We have seen this appear after a mat foundation has been modelled. In this scenario, the supports that are automatically placed under columns are manually deleted to ensure the columns are supported on the mat
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • Validation-Analysis
  • validation
  • No supports defined in the model
  • error

When I review the Project Workspace > Status window I can see a validation warning "Validation is outdated". Why do I get this and how can I resolve it?

When I review the Project Workspace > Status window I can see a validation warning "Validation is outdated". Why do I get this and how can I resolve it?   This validation warning can appear under the Validation, Model, Analysis and Design sub-branches. Typically you will see this message if you make edits to the model file or invalidate an analysis or design in some way. There is a dependency that before any analysis and/or design can be performed Model validation must be completed. Before an Analysis, both Model and Analysis validation must be completed and finally before a Design -
Requires Tekla Maintenance
by Tekla Structural Designer Development Team
0
  • validation
  • Validation-Model-General
  • Validation is outdated

Tekla Structural Designer 2018 Service Pack 1

This release will upgrade your Tekla Structural Designer installation to version number 18.0.1.10 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. If you are upgrading from a version earlier than Tekla Structural Designer 2018 (version 18.0.0.32/331) 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 here while those for
by Tekla Structural Designer Development Team
0

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