PGSuper 7.0
Precast-prestressed Girder Bridges
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Temporary strands are straight strands typically placed in the top flange of the girder to control stresses associated with long overhangs required for stability during handling. Temporary strands can be:
Temporary strands are assumed to be bonded at the ends of the girder and debonded along the remainder of the girder. Temporary strands are assumed to be removed once the girder has been erected and properly stabilized. Once removed, the temporary strands are no longer included in the analysis.
NOTE: The bonded portion of pre-tensioned temporary strands are considered to be removed, even though they remain bonded to the concrete.
Guidance on the use of temporary strands is available in the AASHTO LRFD Bridge Design Specifications, 9th Edition, 2020, Article 5.9.4.5
Temporary Strand Grid The information in the temporary strand grid defines the possible locations and fill order of temporary strands.
Item | Description |
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Xt,Yt | Location of a temporary strand position measured from the top center of the girder |
[Delete] | Deletes the selected strand position from the grid |
[Append] | Adds a new strand position at the bottom of the girder |
[Insert] | Inserts a new strand position at the currently selected row in the grid |
The following rules apply: