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Apply loads to parts

Last updated March 12, 2019 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 
2019

Apply loads to parts

Apply loads to parts

To apply loads in a structural analysis modelstructural model that is created from a physical model and used on the one hand for analyzing structural behavior and load bearing, and on the other hand for design

Analysis model can be viewed in Tekla Structures in a model view.

Analysis model that is made with Tekla Structures can be worked on in other analysis and design software or application.

, Tekla Structures searches for parts in the areas that you specify. For each load, you can define the load-bearing parts by name or selection filterfilter used for defining which object types can be selected

Selection filter chooses model objects according to object properties.

Selection filters can be standard or user-defined.

For example, selection filters can be used to select parts for drawings or analysis.

, and the search area (the bounding boxrectangular border with the smallest measure within which all the selected points that position the model objects lie

In Tekla Structures two-dimensional bounding boxes are used in drawings and three-dimensional bounding boxes in models.

of the load).

Define load-bearing parts by name

You can list the parts that carry a load or the parts that do not carry a load.

  1. Double-click the load that you want to distribute to parts.

    The load properties dialog box opens.

  2. On the Distribution tab:
    1. In the Load-bearing parts list, select one of the following:
      • Include parts by name to define the parts that carry the load.

      • Exclude parts by name to define the parts that do not carry the load.

    2. Enter the part names.

      You can use wildcards when listing the part names.

  3. Click Modify to save the change.

Example

In this example, braces do not carry this uniform load:

Define load-bearing parts by selection filter

You can define the load-bearing parts by using selection filters.

Before you start, check if there is a selection filter available that suits your needs. If not, create one.

  1. Double-click the load that you want to distribute to parts.

    The load properties dialog box opens.

  2. On the Distribution tab:
    1. In the Load-bearing parts list, select one of the following:
      • Include parts by filter to define the parts that carry the load.

      • Exclude parts by filter to define the parts that do not carry the load.

    2. Select the selection filter in the second list.
  3. Click Modify to save the changes.

Example

In this example, parts that match the Beam_Steel filter carry this uniform load:

Bounding box of a load

A bounding box is the volume around a load where Tekla Structures searches for load-bearing parts.

In addition to selection filters or part name filters, you can use a load’s bounding box to search for the parts that carry the load.

Each load has its own bounding box. You can define the dimensions of a bounding box in the x, y, and z directions of the current work planeplane that the user has chosen in a model and that is currently active for working on in a model view

Newly created, copied, or moved model objects comply with the work plane. For example, shifting the work plane to follow a sloped plane makes it easier to model sloped structures.

. The dimensions are measured from the reference pointpoint that Tekla Structures creates when the user creates a model object, the point being visualized as a handle

The reference points follow the model object if it is moved. They are only deleted if the related model object is deleted.

Reference points can be selected as snap points in a snap switch.

, line, or area of the load.

Offset distances from the reference lineline between two reference points

For example, if the user picks two points to position a beam, these points form the reference line, and handles appear at the line ends.

Reference lines can be used in snapping in a snap switch.

or area do not affect the size of the bounding box.

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