Purpose: Defines allowable LRFD fatigue stress range
--> Given in LRFD girder input
The 2009 LRFD interims can increase the fatigue truck load factor from 0.75 to 1.50 depending on the category and ADTT (LRFD 6.6.1.2.3) as described for the new load combination Fatigue I. This condition, employed at user discretion, sets the fatigue truck load factor to 0.75 for all categories and values of ADTT as in the 2008 interims.
{none}