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Eq 6-7 in Addendum No. 1 to the PTI design of PT SOG

Thread starter KSTOKINC
Start date Sep 24, 2008

Status: Not open for further replies.

Sep 24, 2008

KSTOKINC

Structural

Hey All,
Just wondering where fp (minimum Average Residual prestress compressive stress,psi) is derived from in that equation. Is it a value found via testing or is it calculated. If it's calculated where is the calculation formula? If it is from testing where is the table of values?