Design and check patches

Tekla Structural Designer
2021
Tekla Structural Designer

Design and check patches

When that the slab item designs resulting from the slab or mat design process are satisfactory, you can then proceed to design patches. You should design slab items before designing patches, as the additional patch reinforcement requirement takes account of the existing level of reinforcement provided by the slab items.

Note:

For each strip within each patch, Tekla Structural Designer determines the area of the required steel (A s,reqd) and the area of the provided steel (A s,prov). The A s,prov calculation always considers the patch reinforcement, but if necessary and allowed, you can also include additional background reinforcement in the calculation.

Check an individual patch

  1. Hover the mouse pointer over the patch that you want to check.
  2. Right-click the patch.
  3. In the context menu that appears, select Check Slab Patch.

    Tekla Structural Designer displays the results of the check in a new dialog.

Check all patches in the model

The same command can be accessed in two ways:
  • In a 3D Structural View, right click on the background and choose Check Patches from the context menu.
  • In the Project Workspace Structure tree, right-click on the Structure branch and choose Check model patches (command) from the context menu.

Tekla Structural Designer checks the reinforcement of all patches in the model.

Check all patches on a single floor

  1. Open a 2D view of the floor that you plan to design.
  2. Right-click anywhere in the view.
  3. In the context menu that appears, select Check Patches.

    Tekla Structural Designer checks the reinforcement of all patches on the floor.

Design an individual patch

  1. Hover the mouse pointer over the patch that you want to design.
  2. Right-click the patch.
  3. In the context menu that appears, select Design Slab Patch.
    Tekla Structural Designer displays the results of the design in a new dialog.

    The results of the design are displayed in a new dialog.

Design or check all patches in the model

The same command can be accessed in three ways:
  • On the Design tab, click Design Patches
  • In a 3D Structural View, right click on the background and choose Design Patches from the context menu.
  • In the Project Workspace Structure tree, right-click on the Structure branch and choose Design model patches (command) from the context menu.

Tekla Structural Designer designs or checks all patches in the model according to their autodesign settings.

Design all patches on a single floor

  1. Open a 2D view of the floor that you want to design.
  2. Right-click anywhere in the view.
  3. In the context menu that appears, select Design Patches.

    Tekla Structural Designer designs all patches on the floor, possibly selecting new reinforcement for them.

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