Welds in drawings

Tekla Structures
2021
Tekla Structures

Welds in drawings

Tekla Structures shows the welds that you have added in a model as weld seams and weld marks in drawings. You can add both model weld marks and drawing weld marks manually in drawings. Model weld marks refer to welds that have been created in the model. Drawing weld marks do not have an associated physical weld in the model.

How are welds displayed in drawings

Tekla Structures shows the welds that you have added in a model as weld seams and weld marks in drawings. You can also add weld marks manually in an open drawing.

Weld concepts

Model welds are displayed as weld marks and welds or weld seams in drawings. Welds and weld marks can be controlled separately. For example, you may want to show the welds in one drawing view and the weld marks in another.

3D model welds are representations of welds in the real world. Weld solids in drawings are representations of the welds in models. Weld seam is the part of the weld path where the weld solid is drawn. Weld path may consist of several weld seams.

Weld solids are shown in drawings for the following welds:

  • Weld solids are shown in drawings for those weld types that have real solid support. Welds that have no real solid support are shown in the model with a hexagonal placeholder, and in drawings weld solids are not shown.

  • Custom cross-section welds are also supported.

Weld solids can be shown as outlines or paths, with or without hidden lines.

In the first example, the welds on the right and in the middle are drawn with outlines and own hidden lines. The weld on the left shows the weld path and hidden lines:

The second example is a cross-section of the structure. The welds on the left and in the middle are drawn with outlines, and the weld on the right shows the path. The weld dimensions have been added manually.

The weld symbols inside the weld marks indicate the weld properties defined for the model weld in the model or for the drawing weld mark in the drawing. Below is an example of a model weld seam (in red) and a model weld mark (in green) in a drawing.

In addition to the weld symbols, the weld mark contains a reference line and an arrow. The arrow connects the reference line to the arrow side of a connection. The welds on the arrow and other sides of a part can have different weld properties.

Weld placement

When parts are welded together, you can place welds on:

  • The arrow sides only

  • The other sides only

  • Both the arrow and other sides

The following images describe the basic placement principles of welds.

(1) Above line

(2) Below line

(3) Arrow side for weld

(4) Other side for weld

By default Tekla Structures places the welds above line according to the ISO standard. You can change this to below line to comply with the AISC standard with the advanced option XS_AISC_WELD_MARK.

Model weld properties

To change model weld properties, you need to modify the weld in the model. When you update the model, the weld objects and weld marks are updated in the drawing according to the model changes. In drawings, you can modify the contents and the appearance of the model welds marks and the visibility, representation and appearance of model weld objects.

Weld solids can be shown in single-part, assembly and general arrangement drawings. In general arrangement drawings, you can only change the representation of welds on view and object level, not on drawing level.

Manual weld marks

To add weld marks in an open drawing:

  • Select the welds and add a model weld mark through the pop-up menu command Add weld mark.

  • Add a drawing weld mark by using the Weld mark command on the Annotations tab.

Add manual drawing weld marks

You can add manual weld marks in an open drawing. Tekla Structures creates manual weld marks using the properties in Weld Mark Properties.

  1. Hold down Shift and, on the Annotations tab, click Weld mark to open weld mark properties.
  2. Enter or modify the content and the appearance of the weld mark.
  3. To exactly place the weld mark in the position you pick and keep it there, click the Place... button and select fixed in the Placing list.
  4. Click Apply or OK to save the properties.
  5. Pick a position for the weld mark.

    You can drag the created drawing weld mark freely to a more suitable location by the leader base point handle.

Example: Weld marks added in drawings

In this example, the first image below is the Weld Mark Properties dialog box in a drawing. The weld mark properties are numbered in the dialog box. The second image shows how the weld mark properties are displayed in a weld mark in a drawing. The same numbers are used in the weld mark as in the dialog box to indicate the weld mark property in the weld. Under the images the meaning of different numbers is explained.

(1) Weld prefix

(2) Weld size

(3) Weld type

(4) Weld angle

(5) Weld contour symbol

(6) Weld finishing symbol

(7) Effective throat

(8) Root opening

(9) Edge/Around, here a weld around symbol

(10) Workshop/Site, here a site weld symbol

Add manual model weld marks

You can add marks to model weld marks in an open drawing. Tekla Structures creates model weld marks using the properties defined for the model weld in the model. You can adjust the visibility and appearance settings of the weld mark in the drawing.

  1. Open a drawing that contains welds created in the model.
  2. Do one of the following:
    • Select a model weld in the drawing.
    • Select several model welds in the drawing using the Select welds switch and area selection, or Drawing content manager.

    If you cannot see any welds in the drawing, check the weld visibility settings in the view properties.

  3. Right-click and select Add weld mark.
  4. To modify the visibility and appearance of the model weld mark::
    • Double-click a weld mark in the drawing, and adjust the properties.
    • Select several model welds using the Select welds switch and area selection, or Drawing content manager. When the welds are selected, right-click and select Select weld marks and From current drawing view or From all drawing views. Activate all selection switches again. Then press down Shift and double-click a weld mark, and adjust the properties.

    Note that you cannot drag the mark away from the associated weld, but you can only drag it along the weld seam.

    Also note that when a weld mark is added through context menu, it is now visible even if its size is below the minimum weld size limit defined in drawing view settings.

Examples: Model welds in drawings

Model welds are welds that you have added in the model. In drawings, they are represented by weld seams and weld marks.

Example 1

In this example, the first image below shows an example of weld properties in the model. You can add welds in the model by selecting one of the welding commands on the ribbon Steel tab. Some of the weld properties are numbered in image, and the second image shows how these properties are shown in a weld mark in a drawing. The same numbers are used in the weld mark to indicate the position and appearance of the property information in the weld.

(1) Edge/Around, weld around symbol is used

(2) Workshop/Site, site weld symbol is used

(3) Weld prefix

(4) Weld type

(5) Weld size

(6) Weld angle

(7) Weld contour symbol

(8) Weld finishing symbol

(9) Effective throat

(10) Root opening

Example 2

The example below shows a staggered, intermittent weld. The length is set to 50 and the pitch to 100.

(1) Staggered, intermittent weld

(2) Length of weld segment

(3) Pitch (center-to-center spacing) of weld segments

Example 3

The example below shows a non-staggered, intermittent weld. The length is set to 50 and the pitch to 100. The pitch is shown in the weld mark when the pitch value is greater than 0.0.

Example 4

Below is an example of a continuous weld.

Example 5

In this example, the staggered, intermittent weld option is selected, and the advanced option XS_AISC_WELD_MARK is set to FALSE to produce an ISO-compliant weld mark.

Example 6

In this example, the staggered, intermittent weld option is selected like in the previous example, but the advanced option XS_AISC_WELD_MARK is set to TRUE to produce an AISC-compliant weld mark.

Tip:

For instructions on how to customize weld symbols, see section "Customize weld type symbols" later in this help article.

Modify model weld mark visibility and appearance in a drawing

Welding properties are set in the model. You can select the welding properties that you want to show in model weld marks in drawings and adjust the appearance of the model weld marks in Weld mark properties.

To select which model weld properties to show, and to modify weld mark properties on drawing view level:

  1. In an open drawing, double-click a view frame to open the View Properties dialog box.
  2. Click Weld mark to go to weld mark properties.
  3. Select whether to show the weld number in Weld number (No/Yes).
  4. Under Visibility:
    • In Welds and Welds in sub-assemblies, select what kind of weld marks to show, or whether to hide all welds (None, Site, Workshop, Both ).

    • In Welds in hidden parts, select what kind of weld marks to show for hidden parts (None, Site, Workshop, Both).

    • In Weld size limit, enter a weld size limit to filter weld marks of that weld size out of the drawing.

      Even though you set the weld size limit, weld marks are always shown if they have reference texts.

    • Note that you can also set the Weld size limit for all views at one go at the bottom of the View creation page in single-part and assembly drawing properties.
  5. Under Above line, Below line and Other, clear a check box in the Visible column next to a weld mark property that you want to hide.
    Note that if you hide Size, Prefix is also hidden, and when you hide Length, Pitch is also hidden.
  6. To adjust the placing properties, click Place....
  7. Click Modify.
  8. Go to the Appearance tab and modify the weld mark text and line appearance.
  9. Click Modify.
    Tip:

    You can modify the properties of individual model weld marks in an open drawing by double-clicking a model weld mark to open Welding Mark Properties dialog box. To select several marks, for example for deleting, right-click the weld mark and select Select weld marks and From current drawing view or From all drawing views.

Example

The first example shows a weld mark where a lot of properties are visible:

In the second example, all other welding mark properties have been hidden, except Type from Above line and Below line, and Reference text from Other:

Tip:

Modify model weld object representation and appearance in a drawing

You can modify the model weld object representation and appearance manually on object level.

  1. In an open drawing, double-click a model weld seam.

    It is easier to select the model weld if only activate the Select drawing welds selection switch .

  2. On the Content tab, select the desired Representation. The options are Path and Outline.
  3. Select whether you want to show Hidden lines and Own hidden lines.
  4. On the Appearance tab, modify the color and line type of the Visible lines and Hidden lines.
  5. Click Modify.

Examples

In the first example below, the welds on the right and in the middle are drawn with outlines and hidden lines. The weld on the left shows the path and hidden lines.

The second example is a cross-section of the structure. The welds on the left and in the middle are drawn with outlines, and the weld on the right shows the path. The welds on the right and left go around the part corner. The welds have manual dimensions.

Tip:

You can define automatic weld properties for model welds before creating a drawing. You can also modify the weld properties on view level in an open drawing by double-clicking frame of the drawing view containing the weld objects and selecting Weld from the options tree. On drawing and view level, you can also modify the visibility settings.

Drag weld marks

You can drag model welds by the base point of the weld mark leader line along the weld seam. This way you can position the weld marks more optimally for increased clarity in the drawings. Manual drawing weld marks not associated to model welds can be dragged freely.

Tip:

Having Drawing drag & drop(File menu > Settings) selected makes selecting the leader line base point and dragging it much easier.

Limitation: You cannot drag the weld leader base point to the back-side of a double-sided weld.

  1. Click the weld mark near the leader line base point.

    If you have Smart select and Drawing drag & drop selected, you do not need to click the leader line, pointing is enough.

  2. Hold down the left mouse button and drag the base point to a new location by the leader line base point handle located in the tip of the arrow.

Example

The first image below shows the welds in the model.

The second image shows the model weld marks in a drawing. The area within which the weld mark leader line base point can be dragged is indicated with dark green.

Merge weld marks

You can force Tekla Structures to use the same mark and symbol for identical welds in a drawing by merging the weld marks.

  1. Open a drawing.
  2. Hold down Ctrl and select the weld marks to merge.
  3. Right-click and select Merge from the pop-up menu.

    Tekla Structures combines the marks.

  4. If needed, you can split merged weld marks by right-clicking the mark and selecting Split from the pop-up menu.

Description

Example

Original drawing

Merged weld marks.

Customize weld type symbols

Most of the weld type symbols are hard coded, but you can edit some of them in Symbol Editor.

The bottom seven symbols in the Type list in model Weld properties and drawing Weld Mark Properties (see image below) are taken from the TS_Welds.sym file. You can edit any of these seven symbols in Symbol Editor to create a custom weld symbol. The rest of the weld symbols are hard coded. Note that the symbol in the Type list does not change when you update the symbol.

  1. Open Symbol Editor as administrator.
  2. Click File > Open and browse to the folder were you have the TS_Welds.sym file.
  3. Select the file and click OK.
  4. Modify the desired symbol.

    When doing this, you need to keep the symbol in the same scale as the other symbols. If your symbol is too large to fit in the box, you can let it extend beyond the borders:

  5. Save the symbol by selecting File > Save.

For more information about Symbol Editor, click Symbol Editor User's Guide.

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