Lifting anchor (80)

Tekla Structures
Tekla Structures

Lifting anchor (80)

Lifting anchor (80) creates two lifting anchors (or anchor groups) for a concrete part and places them symmetrically on either side of the part’s center of gravity.


30% of part length (default)


Center of gravity

Objects created

  • Lifting anchors (2 or more)

  • Recesses for anchors (optional)

Use for


More information

Straight anchor with straight legs

(Type A in the anchor properties file, see Anchor properties from a file)

Straight anchor with L-shaped legs

(Type D)

Angle anchor with straight legs

(Type B)

Angle anchor with L-shaped legs

(Type C)

Custom components as anchors

Anchors recessed into the part.

Skew and/or rotated anchors

Before you start

Create the concrete part.

Selection order

  1. Concrete part.

Picture tab

Use the Picture tab to define anchor properties, to use custom components as anchors, to create recess and define recess dimensions.

Lifting anchor properties

The properties of lifting anchors are:



Create anchors

Select how the anchors are created.

Anchor dimensions

The options are:

  • Use dialog values

  • Select from file, see Anchor properties from file.

You need to enter different dimensions for different anchor types.

Distance from

Set the anchor distribution from the center of gravity or part end.

You can set the distance either by length or by percentage of the length.

The distance between an anchor (or anchor group) and the center of gravity of the part. Default is 30% of the part length.

The distance between an anchor (or group) and the center line of the part.

Number of bars/spacings

The number and spacing of anchors in a group. If the spacing varies, enter each value individually.


See Custom component as lifting anchor.


Custom settings

Up direction

The option to define if the anchors are recessed into the part.

The skew angle of anchors. Anchor heads are skewed towards the part’s center of gravity.

Rotate anchor

The option to rotate anchors. The options are:

  • No: Anchors parallel to the part.

  • Yes: Anchors perpendicular to the part.


Strength of the steel used in the anchor.


Diameter of the anchor bar.


Name that is shown in drawings and reports.

Prefix, Start number

Prefix and start number for the part position number.


Part class number.


Select the side of the part where Tekla Structures creates the anchors:








Start end

Finish end


Select one of the following options to define if the lifting anchors are recessed into the concrete part:



Anchors on the surface of the part.


Anchors recessed into the part.

If you choose to recess the anchors into the part, use the following fields to define the shape and dimensions of the recesses:

Custom component as lifting anchor

To use custom components as lifting anchors:

  1. In the Custom list box, select Yes.

  2. Click the ... button next to the Component field to open the Select component dialog box.

  3. Browse for the custom component you want to use as lifting anchor.

    The component you select must be a custom part and have two or three input points.

    The component should be created so that the first and the second input points are on the concrete surface and along the longitudinal axis of the concrete part.


    For more information on how to create custom parts that can be used as lifting anchors, see Creating standard embeds for global use.

  4. Select the component and click OK.

  5. To use saved custom component properties, select the saved properties file in Custom settings.

  6. If the anchor position is not correct, select another option in the Up direction list box.

Anchor properties from file

You can define lifting anchor properties by entering values in the dialog box, or you can create a file containing the anchor properties you want to use. Use any standard text editor to create the file and save it as LiftingAnchors.dat in the model folder.

To use the anchor properties you define in a file:

  1. In the Lifting anchor (80) dialog box, select Select from file from the Anchor dimensions list box.

  2. Click the ... button to browse for the file.


Create a row in the file for each lifting anchor. Enter the following properties, separated by spaces:

  • Anchor capacity [kN], including safety and material factors

  • Type [A, B, C, or D], see the Use for table.

  • Grade [characters]

  • Size [characters]

  • Anchoring length 1 [mm]

  • Anchoring length 2 [mm]

  • Protruding dimension of the anchor outside the part [mm]

  • Penetrating dimension of the anchor inside the part [mm]

  • Bending radius [mm]

  • Hook length [mm] (0 = no hook)

  • Angle of leg 1 [degrees]

  • Angle of leg 2 [degrees]

Here is an example of a lifting anchor file (Tekla Structures ignores the comments enclosed in /* */):

Tekla Structures will use the first anchor in the file that:

  1. Has the shape and type you define using the graphic list boxes in the Lifting anchor (80) dialog box.

  2. Can carry the part’s weight with other identical anchors. The total number of anchors is two times the number you specify in the Number of bars field.

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