Tendon Load Form

Use the Tendon Load form to define the tension on the tendon.

Load Pattern Name drop-down list. Choose the load pattern to which the tendon load definition is to be added. Alternatively, click the + (plus symbol) beside the drop-down list to access the Define Load Patterns form; use the form to define a load pattern that will then be available in the drop-down list.
Units drop-down list. Use the displayed units or select new units from the drop-down list.
Jack From This Location options. Choose the option to specify the location for applying the stress or force on the tendon.
- I-End (Start) of Tendon option. Specify that the force or stress is to be applied at the start of the tendon.
- J-End (End) of Tendon option. Specify that the force or stress is to be applied at the end of the tendon.
- Both Ends Simultaneously option. Specify that the force or stress is to be applied to both the start and end of the tendon.
Load Type options and Tendon Load edit box. Choose to apply tension to the tendon as a Force or Stress. Then use the default Force or Stress shown in the edit box, or type a revised value in the edit box.
Friction and Anchorage Losses options.
- Curvature Coefficient edit box. Use the default or specify the curvature coefficient for the prestress loss.
- Wobble Coefficient edit box. Use the default or specify a revised wobble coefficient in this edit box.
- Anchorage Set Slip edit box. Use the default or specify a revised distance for the anchor slip.
Other Loss Parameters edit boxes. When tendons are modeled as elements, the parameters in this area of the form (Elastic Shortening Stress, Creep Stress, Shrinkage Stress, Steel Relaxation Stress) apply in addition to the losses computed by the analysis due to time dependent behavior defined in the material properties. Elastic Shortening Stress generally should be set to zero.

Options. Specify how the load is to be applied.

Replace Existing Loads option. Replaces the currently specified tendon load, if any, with the new load. If no assignment exists, the new assignment is still made. This is the default option.
Delete Existing Loads option. Deletes any and all tendon load assignments made to the tendon.