Purpose: Used to specify impact in ASD or LFD Girder System Projects. (See IMPACT for Line Girder Projects)
--> Given in girder system input
List of nonzero impact fractions for girder "i" (can be uniform or given by tenth points.) For example, a value of 0.2 will increase live load effects by twenty percent. These override values which otherwise would be calculated by the program. Values cannot be given as 0. Use IGNORE IMPACT condition if impact is to be ignored.