Draped Tendon [CBS]

A Draped Tendon follows a curved (draped) profile across several segments, dipping toward the soffit at midspan and rising near the piers. Its transverse and vertical paths are entered per segment.

Layout

Section Vert. Reference Edge [Top=1/Bottom=2]: Edge of the segment cross-section the tendon's vertical offsets are measured from (default: Top=1).

Transverse Tendon Path: Table describing the tendon's transverse (horizontal) layout. Each row gives the segment, station and offset, together with the variation applied between control points.

Vertical Tendon Path: Table describing the tendon's vertical (elevation) layout. Each row gives the segment, station and offset, together with the variation applied between control points.

Local Coord. X Offset: Offset applied to the tendon path along the local X axis (default: 0).

Local Coord. Y Offset: Offset applied to the tendon path along the local Y axis (default: 0).

Local Coord. Z Offset: Offset applied to the tendon path along the local Z axis (default: 0).

Set Tendon Pattern Symm. about ℄ Segmental Box[YES=1/NO=0]: When YES, the tendon pattern is mirrored about the centerline of the segmental box (default: NO=0).

Reference Tendon: An existing tendon this one takes its pattern from.

3D Reference

Girder: The girder the tendon runs along.

Reference Support Line (for Girder): Support line the tendon's stations are measured against.

Section Reference Point (for Girder) [Top Center of the Section=1/Bottom Center of the Section=2]: Point of the girder section the tendon offsets are measured from (default: Top Center=1).

Section Reference Point (for Cap, Starts From Right) [Top Center of the Section=1/Bottom Center of the Section=2]: Reference point used when the tendon runs through a cap (default: Top Center=1).

Section Reference Point (for Column, Starts From Top) [Center of the Section=1/]: Reference point used when the tendon runs through a column (default: Center=1).

Properties

Material: Material assigned to the tendon.

Post-tension Type [Bonded=0/Unbonded=1]: Whether the tendon is bonded to the surrounding concrete after grouting (default: Bonded=0).

Exposure [Internal=0/External=1]: Whether the tendon runs inside the concrete section or outside it (default: Internal=0).

Anchor Set Length: Anchor set (draw-in) length at the stressing anchorage (default: 0.375).

Wobble Friction Coefficient: Wobble friction coefficient used in the friction loss computation (default: 0.0002).

Curvature Friction Coefficient (1/rad): Curvature friction coefficient used in the friction loss computation (default: 0.18).

Jacking

# of Strands: Number of strands in the tendon (default: 31).

Strand Type: Strand product assigned to the tendon.

Jacking Method: Jacking type [Start=0/End=1/Start then End=2/End then Start=3]: Selects which end (or order of ends) the tendon is stressed from (default: Start=0).

Jacking Force From Start: applied jacking force to the start of tendon.: Jacking force applied at the start end (default: 1362.22).

Jacking Force From End: applied jacking force to the start of tendon.: Jacking force applied at the end (default: 0).

FEA Settings

Load Dist. Elem. Type[FENodes=0/FELines=1]: Whether the tendon force is distributed onto finite-element nodes or lines (default: FELines=1).

Percent Loss (%): Additional percentage loss applied to the tendon force (default: 0).

3D Settings

Show Tendon(Detailing)[NO=0/YES=1]: When YES, the tendon is drawn in the 3D view (default: YES=1).