Sloping Slabs

Last updated July 2, 2020 by BuildingPoint Schweiz AG

Software version: 
Not version-specific

Sloping Slabs

Purpose and description

This extension enables user to create fully parametric sloped slabs. You can create slabs, add splitlines, manage openings and also create automatic connections to walls or columns above or below the slabplate that represents a concrete structure

In Tekla Structures, a slab is created by picking three or more points.

Slab may be part of a floor, for example.

. You can simply modify the geometry by dragging points or enter a new height for specific points.

System requirements

This extension is only available for maintenance customers of BuildingPoint Switzerland.
This extension needs Tekla Structures 2020 or newer.
The ribbon-icon will only be presented by using Tekla Structures 2020 SP2 onwards.

Installing Sloping Slabs

You can download Sloping Slabs on Tekla Warehouse.
After the installation, you will find the extesions in the ribbon in tab SWISSTOOLS or in the component catalogcatalog that contains all system components and custom components, and the macros and applications


Using Sloping Slabs

Create a Slab

To create a slab, simply click the points of the slab and press middle mouse button to close. Your Slab will then be created with it's current settings.
You can use the dialog menu for editing by clicking twice on the component. In the dialog you can set values like Name, Material, Finish or Thickness of the slab. Activate parallel slab? to have a constant thickness instead or a horizontal bottom-level.

In the Sidepane, you can also set settings for slab attributes. You have the choice to set them manually or use a saved standard-file from Slab-Object to use as a template.

Modify a slab

Modify the contour of a slab by dragging one of the yellow contour points. Use direct modificationfunction that activates the mode where the model objects can be modified by using handles

Direct modification enables additional handles and modification options.

to place the point at the correct location.


  1. If you want to add more points to the contour, use add contourpoints to display the "add point"-symbol in the center of each edge.
  2. Modify if the slabs bottom-surface should be horizontal or following the top-surface with a specific height. 

Use of splitlines

Use either add splitline or add polyline to add splitlines to the slab.

Whereever two splitlines are crossing, a yellow handle will be generated. You can drag the point to move it with the use of direct-modification. By clicking on the point, the direct-modification-toolbar with show a value where you can input the needed absolut height of that point.

By pressing Delete on your keyboard, the point and according splitlines will be deleted.

Use of openings

You can define openings inside the slab. Note that due to current limitations, it's not possible to use openings and connections to walls or columns together.

To delete an opening, press delete opening, click inside an opening and press delete.

Insert connection

You can insert automatic connections between the slab and parts like walls or columns above or below. Click on the slab and go to Tab Connection in the sidepane. Choose wether you want to connect parts above or below the slab.

Copy a slab

If you copied a slab with normal copy-functions, you may need to update the slab to get actual height-values of the points. Just click on the slab and click Modify in the sidepane.

Known limitations

  • Using the Connection above or below slab will only work if there is no opening in the slab.

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