A simply supported prestressed beam of span 8m
is subjected to an uniformly distributed loading of 8kN/m
on its entire span. The prestressing force of 200kN
is applied to tendons at an uniform eccentricity of 50mm
. The flexural rigidity of beam is 2.5×104kN/m2
. The net increase in length (in mm, rounded off to two decimal place) of the tendons is ____.