Using the Auditor for guidance on post-tensioning

Certain codes limit the service stresses and designers are required to comply with the limits. The Auditor displays advice on how much additional post-tensioning strand is required in a design strip to satisfy certain code clauses.

This information is accessible from many plans, but the instructions below are for using the Service Rule Set Design.

Choose Layers > Rule Set Designs > Service Design > Status Plan
Select the Auditor tool ().
Click on the plan at the design strip cross-section which has failed a stress criterion and for which you require guidance.
Scroll to the text bordered by two lines of asterisks (top and bottom) near the bottom of the audit.
Open all items
Search for the string "SUGGESTIONS" using the Report Viewer Find tool

If the maximum tensile stress is within code then the search string will not be found. If the calculated concrete tensile stresses exceed the allowable limit then the Auditor suggests the percentage increase in strand required to satisfy the stress limit.

SUGGESTIONS:
Top Stress Exceeds Tensile Limits:
Suggest increasing number of tendons by 8.4% or more.
(Due to diversion of prestress into other areas, above percentage may not be exact)

Auditor text indicating percentage increase required to comply with code.

Note: The precompression and balance effects of a tendon are not necessarily limited to the area (and design strip) where the tendon is located. Due to the diversion of prestress (bleed of P/A) beyond the design strip the suggested percentage increase may not be exact.

Note: If there are tendons intersecting the cross-section at an angle other than ninety degrees then the suggested percentage increase may be inaccurate.