Partial factor for prestress in unfavourable situations γP,unfav
Eurocode 2 part 1-1: Design of concrete structures 2.4.2.2 (2)
In the verification of the limit state for stability with external prestress, where an increase of the value of prestress can be unfavourable, γP,unfav should be used.
Recommendation
The recommended value of this partial factor for prestress γP,unfav for global analysis is 1,3.
