Manage and display result strips

Tekla Structural Designer
2021
Tekla Structural Designer

Manage and display result strips

You can place user-defined result strips across 2D element meshes. For these strips, Tekla Structural Designer determines the force and moment results from the shell/plate/membrane nodal analysis results. These results can then be used for design purposes, typically for slab design.

Engineering judgement is required when positioning the strips to ensure suitable design forces are obtained.

By default, strips have parallel edges, but tapering strips can also be defined as shown in the following image:

Create result strips

  1. Open a 2D view of the FE mesh where you want to place the strip.
  2. In the Status bar, click Results View.

    On the ribbon, the Results tab opens.

  3. In the 2D Integrated Results group, click Result Strip.
  4. In the Properties window, adjust the result strip properties according to your needs.
  5. Click the start point of the strip.
  6. Click the end point of the strip.
    Tip:

    Neither the start or the end point have to match nodes in the mesh.

    Tekla Structural Designer creates a strip between the selected points.

  7. Do one of the following:
    • Continue placing further strips.
    • Press Esc to exit the command.

View the results for result strips

Once you have created a result strip in the model, you can obtain results for it without re-running the analysis. In order to view the results, do the following:

  1. Open a 3D view containing the strips whose results you want to view.
  2. Go to the Results tab.
  3. In the first list of the Result Type group, select the desired result type.
  4. In the Loading list, select the loadcase or combination that you want to display.
  5. In the 2D Integrated Results group, click the effect that you want to view.

    Tekla Structural Designer displays the selected effect on the strip, and its maximum positive and negative values, calculated according to the result type specified in the strip properties.

    Note:

    Tekla Structural Designer contains the following three ways to calculate the results:

    Method name Details
    Normal
    • The results on the center of the result strip are calculated at each station*.

    • Tekla Structural Designer considers the shell elements local to each station, and calculates a weighted average force based on the distance of the element nodes from the station.

      The process is repeated for all stations along the center line of the strip to give the results.

    Maximum
    • The results on the transverse line across the strip are calculated for each station* along the strip.

    • Tekla Structural Designer considers the shell elements local to each point, and calculates a weighted average force based on the distance of the element nodes from the point. The maximum result across the strip from all points is taken as the result for the station on the strip center line.

      The process is repeated for all stations along the center line of the strip to give the results.

    • The values calculated at points are always weighted averages of results at adjacent nodes. Therefore, they are always less than the peak nodal values.

    • Maximum values include nodes within the strip.

    Average
    • Average over strip width.

    • The results are obtained in the same way as for the maximum option, but in this case, they are averaged to give the results for each station*.

      The process is repeated for all stations along the center line of the strip to give the results.

    * Along the strip center line, there is a user-defined number of stations. At each station, there is a transverse line with a user defined number of points along it. Final results are always given by station, and obtaining them may or may not use points.

    All forces in the results are rotated to be in the axis system of the result strip.

Delete result strips

Tip:

To delete a strip, ensure that Result Strips are switched on in Scene Content.

  1. Open a view containing the strip that you want to delete.
  2. In the Quick Access toolbar, click Delete.
  3. In the model, click the strip that you want to delete.

    Tekla Structural Designer deletes the selected strip.

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