# Tendon \[PIG]

Tendons can be modeled for concrete bridge elements. In the case of the Precast I Girder workflow, tendons can be modeled for:

To use the Tendon objects, the user must have a previously defined or imported Strand Profile under the Properties section.

If a user does not have any strands defined, it is recommended to return to the [Strands \[PIG\]](https://docs.openbrim.org/templates/precast-i-girder-bridge-workflow/properties-pig/strands-pig) section of the workflow, define the related strands, and then proceed further.

Tendons for Precast I Girders should be modeled as part of the workflow outlined in [Precast I Girder \[PIG\]](https://docs.openbrim.org/templates/precast-i-girder-bridge-workflow/superstructure-pig/girders-pig/precast-i-girder-pig).