Modeler > Tendons > Create New Tendon

Setting	Description
Tendon numbers	Tendon number can be defined or modified with From, To, and Step.
Type	Internal: Current tendon profile is a post-tensioned bonded internal prestressing tendon External: Assign current tendon to be a post-tensioned unbonded/bonded external tendon Pre-tensioned: Assign current tendon to be a post-tensioned unbonded/bonded external tendon
Parameters
Description	Descriptive text for the tendon profile(s) (max. 80 characters)
Material	Type of the tendon profile with respect to the geometry definition.
Tendon geometry	Type of the tendon profile with respect to the geometry definition Normal: Tendon profile used in the analysis with its own geometry definition Master profile: Pseudo tendon profile with the geometry to be used as a template.
Slave bounds	Start/End position of the slave tendon within the first/last element given by the ratio x/l. (Note: For the end position the default value of 0.0 is interpreted as 1.0 (i.e. the end of the element)).
Master profile	Number of the related master tendon profile defining the tendon geometry (only available for Slave tendon profile).
Additional Parameters
Number of tendons	Number of tendons in the tendon profile(s) (for each if from/to/step specified)
At	Nominal area of one tendon of the tendon profile
Ad	Nominal area of one duct of the tendon profile
Friction	Coefficient of friction between the tendon and the duct
Beta	Accidental deviation angle (Angle/Length). (Refer to the User Manual for checking the difference to the "Wobble factor" specified in various design codes!) Beta can be evaluated automatically from the Wobble factor which can be input when clicking the drop-down menu. (The value for Friction must have been defined first in order to be able to evaluate Beta).
PT-Force	Nominal prestressing force of pre-tensioned tendons (force in the tendon before cutting the connection to the external anchor points). In draped tendons the force is related to the direction of a straight connection between start and end point, assuming hold down forces acting normal to this direction. Note: The prestressing force of post-tensioned tendons and its development due to friction is defined in Schedule > Stages > Tendon actions.
sl-b, sl-e	Sleeve lengths at begin and end of the tendon(s) (mainly for pre-tensioned tendons)
dl-b, dl-e	Development lengths at begin and end of the tendon(s) (for pre-tensioned tendons - Type Pre-tensioned).
Stress Optimization	Options which allow for defining the stress limits for prestressing tendons generally prescribed by the respective design codes. The values can be defined by the factor Fact. of SIGP (see Schedule > Stages > Tendon Actions ) or directly be given as stress values Sigma (the values will be recalculated from one another). Default values are automatically set according to the selected design code of the project (currently only implemented for AASHTO LRFD, EC and DIN-FB). Standard default values are set for all other codes. The limits are considered within the stressing actions of the tendons in Schedule > Stages > Load Definition > Tendon Load. The respective option "Optimize" has to be checked there within the respective stressing action (see Schedule > Stages > Load Definition >Tendon Load ).
During tensioning	Allowable stress in the tendon during tensioning
After tensioning at anchorage	Allowable stress in the tendon at the anchorages (i.e. begin and end of the tendon) immediately after tensioning and anchoring. Note: Only relevant for some design codes (e.g. AASHTO LRFD). In general, the value would be set to the same value as below.
After tensioning along tendon	Allowable stress in the tendon elsewhere along the length of the tendon away from anchorages immediately after tensioning and anchoring.
Segment
Reference segment	Reference segment or Main Girder to which Tendon will be associated.
Part	Part number in the cross section to which Tendon will be associated.
From segment point	Define the tendon point begin per bridge geometry, by selecting the segment point station from drop down menu.
To segment point	Define the tendon point end per bridge geometry, by selecting the segment point station from drop down menu.

Tendon numbers

Tendon number can be defined or modified with From, To, and Step.

Type

Internal: Current tendon profile is a post-tensioned bonded internal prestressing tendon
External: Assign current tendon to be a post-tensioned unbonded/bonded external tendon
Pre-tensioned: Assign current tendon to be a post-tensioned unbonded/bonded external tendon

Parameters

Description

Descriptive text for the tendon profile(s) (max. 80 characters)

Material

Type of the tendon profile with respect to the geometry definition.

Tendon geometry

Type of the tendon profile with respect to the geometry definition

Normal: Tendon profile used in the analysis with its own geometry definition
Master profile: Pseudo tendon profile with the geometry to be used as a template.

Slave bounds

Start/End position of the slave tendon within the first/last element given by the ratio x/l. (Note: For the end position the default value of 0.0 is interpreted as 1.0 (i.e. the end of the element)).

Master profile

Number of the related master tendon profile defining the tendon geometry (only available for Slave tendon profile).

Additional Parameters

Number of tendons

Number of tendons in the tendon profile(s) (for each if from/to/step specified)

At

Nominal area of one tendon of the tendon profile

Ad

Nominal area of one duct of the tendon profile

Friction

Coefficient of friction between the tendon and the duct

Beta

Accidental deviation angle (Angle/Length).

(Refer to the User Manual for checking the difference to the "Wobble factor" specified in various design codes!)

Beta can be evaluated automatically from the Wobble factor which can be input when clicking the drop-down menu. (The value for Friction must have been defined first in order to be able to evaluate Beta).

PT-Force

Nominal prestressing force of pre-tensioned tendons (force in the tendon before cutting the connection to the external anchor points). In draped tendons the force is related to the direction of a straight connection between start and end point, assuming hold down forces acting normal to this direction.

Note: The prestressing force of post-tensioned tendons and its development due to friction is defined in Schedule > Stages > Tendon actions.

sl-b, sl-e

Sleeve lengths at begin and end of the tendon(s) (mainly for pre-tensioned tendons)

dl-b, dl-e

Development lengths at begin and end of the tendon(s) (for pre-tensioned tendons - Type Pre-tensioned).

Stress Optimization

Options which allow for defining the stress limits for prestressing tendons generally prescribed by the respective design codes.

The values can be defined by the factor Fact. of SIGP (see Schedule > Stages > Tendon Actions ) or directly be given as stress values Sigma (the values will be recalculated from one another).

Default values are automatically set according to the selected design code of the project (currently only implemented for AASHTO LRFD, EC and DIN-FB). Standard default values are set for all other codes.

The limits are considered within the stressing actions of the tendons in Schedule > Stages > Load Definition > Tendon Load. The respective option "Optimize" has to be checked there within the respective stressing action (see Schedule > Stages > Load Definition >Tendon Load ).

During tensioning

Allowable stress in the tendon during tensioning

After tensioning at anchorage

Allowable stress in the tendon at the anchorages (i.e. begin and end of the tendon) immediately after tensioning and anchoring. Note: Only relevant for some design codes (e.g. AASHTO LRFD). In general, the value would be set to the same value as below.

After tensioning along tendon

Allowable stress in the tendon elsewhere along the length of the tendon away from anchorages immediately after tensioning and anchoring.

Segment

Reference segment

Reference segment or Main Girder to which Tendon will be associated.

Part

Part number in the cross section to which Tendon will be associated.

From segment point

Define the tendon point begin per bridge geometry, by selecting the segment point station from drop down menu.

To segment point

Define the tendon point end per bridge geometry, by selecting the segment point station from drop down menu.