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Non-distortional Prestressing
Concrete members deflect due to their own self weight. If prestressing force is applied in such a way that these deflections are eliminated due to the action of the prestressing force, it is called as non-distortional prestressing. In such a case, prestressing moments and self-weight moments balance each other and the concrete member is subjected to an axial force and bending moments due to externally applied loads only.
A W12x58 member, which comprises a vertical member in a truss span, is subjected to a factored axial compressive force of 163 kips. The W12x58 section is oriented such that the st
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