Sandwich and double wall

Tekla Structures
2024
Tekla Structures

Sandwich and double wall

Sandwich and double wall creates a precast concrete wall. The wall consists of an inner shell, foil, insulation, and outer shell.

Objects created

  • Inner shell

  • Foil (optional)

  • Insulation (optional)

  • Outer shell (optional)

Use for

Situation

Description

Sandwich wall, split shells.

Sandwich wall, brick wall on outer shell as surface treatment.

Selection order

  1. Pick the first point.

  2. Pick the second point.

    The wall is created automatically when the second point is picked.

Part identification key

Part

1

Inner shell

2

Foil

3

Insulation

4

Outer shell

Parts tab

Use the Parts tab to control the dimensions and positioning of the sandwich wall inner shell, foil, insulation, and outer shell. The inner shell is always created.

Numbering settings

Set Numbering settings to Enabled to show Prefix and Start number for all parts.

Inner shell

Option

Description

Default

Thickness

Define the thickness of the inner shell.

150 mm

Foil

Option

Description

Default

Thickness

Define the thickness of the foil.

1 mm

Create foil

Define whether the foil is created.

Yes and subassembly

Insulation

Option

Description

Default

Thickness

Define the thickness of the insulation.

50 mm

Create insulation

Define whether the insulation is created.

Yes and subassembly

Edge strips in split case

Define different material and class properties for parts on the edge of the wall.

Outer shell

Option

Description

Default

Thickness

Define the thickness of the outer shell.

1 mm

Create outer shell

Define whether the outer shell is created.

Yes + cast unit

Properties

Option

Description

Default

Pos_No

Prefix and start number for the part position number.

Some components have a second row of fields where you can enter the assembly position number.

The default part start number is defined in the Components settings in File menu > Settings > Options.

Material

Material grade.

The default material is defined in the Part material box in the Components settings in File menu > Settings > Options.

Name

Name that is shown in drawings and reports.

Class

Part class number.

Cast unit type

Defines if the structure type of the part is Precast or Cast in place.

Set Cast unit type to Enabled to show Cast unit type for parts.

Precast

Positioning

You can use Standard or Advanced positioning. With advanced positioning, there are more options for sandwich wall width and foil position.

Sandwich wall width

Option: Standard

Description

No gaps between the parts. Sandwich wall thickness is the sum of all created parts.

Define the total wall width.

A gap is created between the outer shell and the insulation.

Option: Advanced

Description

Define the total wall width and the gap between the inner shell and the insulation.

Another gap is created between the outer shell and the insulation.

Define the total wall width and the gap between the outer shell and the insulation.

Another gap is created between the inner shell and the insulation.

Define the total wall width and the gap between the inner shell and the insulation.

No gap is created between the outer shell and the insulation.

Foil position

Option

Description

By default, the foil is placed on the outer side of the inner shell.

Define another foil position. Set Positioning to Advanced.

Point offset

Option

Description

Define the offset from the outer face of the inner shell.

Define the offset from the inner face of the inner shell.

Define the offset from the center of the sandwich wall.

Define the offset from the inner face of outer shell.

Define the offset from the outer face of outer shell.

Parametric profile

Option

Description

Parametric section

Set to Enabled to define the prefix for the parametric profiles of the sandwich parts.

Prefix for the parametric profile

Select the prefix for the parametric profile:

  • Position h*b and Position b*h to create plate profiles without a prefix.

    If Parametric section is set to Disabled, the parts have an h*b prefix, for example, 2000*100.

  • Position PLh*b and Position PLb*h to create plate profiles whose prefix starts with PL.

  • Par. section h*b and Par. section b*h require you to enter a parametric plate profile prefix.

Par.section prefix

Define the prefix of the parametric profile.

Vertical section tab

Use the Vertical section tab to control the vertical level part properties. You can define both the top and the bottom level. The levels can be set as absolute levels, or vertically relative (displaced) to the points.

Top level

Option

Description

n1, n2, n3, n4

Define the absolute top level height.

h1, h2, h3, h4

Define the part height from the bottom face.

d2, d3, d4

Define the vertical displacement from the adjacent part.

When you use relative levels, the levels of all other parts depend on the inner shell level.

Bottom level

Option

Description

m1, m2, m3, m4

Define the absolute bottom level height.

a1, a2, a3, a4

Define the bottom offset from the point.

b2, b3, b4

Define the vertical displacement from the adjacent part.

When you use relative levels, the levels of all other parts depend on the inner shell level.

Thicken innershell

You can define a thickening for both the top and the bottom side of the inner shell.

Option

Description

Example

Inner shell is not thickened.

Inner shell is thickened towards the outer face of the insulation.

Define the insulation height to prevent collisions.

Inner shell is thickened to the inner face of the outer shell.

Inner shell is thickened to the outer face of the outer shell.

Define the outer shell height to prevent collisions.

Inner shell covers the insulation and outer shell.

Option

Description

Example

Thickness

Define the inner shell thickness.

If you do not enter a value, the inner shell thickness defined on the Parts tab is used.

Thickening parts

Select how the top and bottom thickening parts are added to the inner shell.

Gap in inner shell

Enter a value to create a gap between the inside and the front of the inner shell at the bottom and the top.

The gap is filled with insulation.

Offset options

Select the offset options for the thickening parts. Offset can be defined for both wall ends.

Horizontal section tab

Use the Horizontal section tab to define the wall ends and to control how the wall parts are split in the horizontal direction.

Wall end

The wall end options are the same for both ends.

First wall end

Second wall end

Wall end offset

Option

Description

Example

Inner shell end is fixed.

Define the offset for the ends of the foil, insulation, and outer shell.

Insulation end is fixed.

Define the offset for the ends of the inner shell, foil, and outer shell.

Outer shell end is fixed.

Define the offset for the ends of the inner shell, foil, and insulation.

Corner shape to the inside direction.

For the outer shell angle, define the offset from the inner face of the inner shell. Insulation is along the inner shell.

Corner shape to the inside direction.

Define the length of the outer shell angle.

Corner shape to the inside direction.

For the outer shell angle, define the offset from the inner face of the inner shell. Insulation is along the outer shell.

Corner shape to the outside direction.

Define the horizontal offset for the outer shell. There is no gap between the insulation and the inner shell angle.

The empty void between the front of the created corner part and the front of the insulation is by default filled with insulation.

Corner shape to the outside direction.

Define the horizontal offset for the outer shell. For the inner shell angle, define the offset from the outer face of the inner shell.

Corner shape to the outside direction.

Define the horizontal offset for the outer shell. For the inner shell angle, define the length.

Angled shells are not created.

Define horizontal offset for the inner shell, insulation, and outer shell.

Corner shape

Option

Description

Select the inner shell corner shape.

Select the outer shell corner shape.

Select the insulation corner shape.

Add corner to main shell

Add the corner to the shell. The options are:

  • Add to 4 Cast Unit (4 = outer shell)

  • Add to 4 Sub assembly
  • Add to 1 Cast Unit (1 = inner shell)

  • Add to 1 Sub assembly

Vertical chamfer

Option

Description

Define whether a vertical chamfer is created.

Define the horizontal and vertical chamfer dimensions, and the part prefix and the start number.

Horizontal offset

To use the options, set the Split Front view option to Enabled.

Option

Description

Define the horizontal offset for the foil, insulation, and outer shell. The main gap between the inner shells is defined in the Split Front view section of the tab.

Define the horizontal offset for the inner shell, foil, and outer shell. The main gap between the insulation parts is defined in the Split Front view section of the tab.

Define the horizontal offset for the inner shell, foil, and insulation. The main gap between outer shells is defined in the Split Front view section of the tab.

Define a 90-degree angle for the inner shell and the vertical offset towards the angled shell from the inner face of the outer shell. The main gap between the inner shells is defined in the Split Front view section of the tab.

Additional options for the 90-degree angle:

  • Define the corner shapes for the inner shell.

  • Define how the corner is added to the inner shell.

  • Define the part prefix and the start number.

Mirroring

Option

Description

Define whether the sandwich wall is mirrored.

Splitting parts

To split wall parts, set the Split Front view option to Enabled.

Option

Description

Parts are not split. Define the horizontal offset for both wall ends using the points as reference points.

Parts are split. Define the section width and the number of sections.

First end offset is the reference for the first section width at the first wall end.

Second end offset is the reference for the last section width at the second wall end.

Parts are split. Define the section width and the number of sections.

First end offset is the reference for the first section width at the first wall end.

Point (2) is the reference of the last section width at the second wall end.

Parts are split. Define the section width and enter the number of sections.

Point (1) is the reference of the start section at the first wall end.

Second end offset is the reference for the last section width at the second wall end.

Parts are split. Define the section width and enter the number of sections.

Points (1, 2) are the references for the section width at both wall ends.

Option

Description

Define the horizontal direction.

Foil tab

Use the Foil tab to control the vertical and/or horizontal splitting of the foil.

Dimensions

Option

Description

1

Define whether the foil is split:

  • Foil is not split.

  • Foil is split in the horizontal direction.

  • Foil is split in the vertical direction.

  • Foil is split in the horizontal and vertical direction.

2

Define the number and width of the middle sections.

3

Define the gap between the sections.

4

Define the width of the first and last section in the horizontal direction.

5

Define the height of the top and bottom section in the vertical direction.

6

Define which wall end is used for distributing the insulation sections.

Point direction

Define the direction of the points. The options are horizontal or vertical.

This option affects the representation of workshop drawings.

Insulation tab

Use the Insulation tab to control the vertical and/or horizontal splitting of the insulation.

Dimensions

Option

Description

1

Define whether the insulation is split:

  • Insulation is not split.

  • Insulation is split in the horizontal direction.

  • Insulation is split in the vertical direction.

  • Insulation is split in the horizontal and vertical direction.

2

Define the number and width of the middle sections.

3

Define the gap between the sections.

4

Define the width of the first and last section in the horizontal direction.

5

Define the height of the top and bottom section in the vertical direction.

6

Define which wall end is used for distributing the insulation sections.

Point direction

Define the direction of the points. The options are horizontal or vertical.

This option affects the representation of workshop drawings.

Outside Shell tab

Use the Outside shell tab to control the vertical and/or horizontal splitting of the outer shell. You can also define chamfers and add a brick wall surface.

Dimensions

Option

Description

Define the direction for the splitting.

Description

1

Define whether the outer shell is split:

  • Outer shell is not split.

  • Outer shell is split in the horizontal direction.

  • Outer shell is split in the vertical direction.

  • Outer shell is split in the horizontal and vertical direction.

2

Define the number and width of the middle sections.

3

Define the gap between the sections.

4

Define the width of the first and last section in the horizontal direction.

5

Define the height of the top and bottom section in the vertical direction.

Chamfering

Option

Description

Vertical chamfers

Define the vertical chamfers. Select a chamfer shape from the list and define the chamfer dimensions.

Horizontal chamfers

Define the horizontal chamfers. Select a chamfer shape from the list and define the chamfer dimensions.

Chamfer side

Define the sides where the chamfers are created.

For example:

Brick wall properties

Set the Brick wall option to Enabled to create a brick wall.

Option

Description

Example

Select the brick wall type for the outer shell and define the brick dimensions, mortar height and width.

Wall edges

Define whether the wall edges are created as loose parts or whether they are added into an assembly.

UDA tab

Use the UDA tab to define user-defined attributes for the inner shell, foil, insulation, and outer shell. You can define multiple UDAs for each part. UDAs can be used as filters, and they can be displayed in drawings and reports.

Option

Description

Shell

Select the shell for the user-defined attribute (UDA) that you are defining.

You can set more than one UDA for a certain shell, if needed.

UDA name

Enter the name of the user-defined attribute.

For example, to add a comment UDA, open the objects.inp file in a text editor and search for comment. The following attribute is shown:

attribute("comment", "j_comment", string, "%s", no, none, "0.0", "0.0")

The first text between the quotation marks is the UDA name, comment. The entered name is case sensitive.

UDA name:

  • comment

  • fabricator

  • art_number

  • type

UDA:

  • Comment

  • Fabricator name

  • Article number

  • Type

Type

Type of the user-defined attribute.

Use String for text, Integer for numbers, Float for numbers with decimals and Option for selecting an item in a list. You can find the UDA type in the objects.inp file

Value

Enter the value that is saved to the user-defined attribute.

For example:

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