I have a 4 span steel bridge that I am modeling. Leap steel is returning a value of 0 kip at 2 piers and negative values at the 3 pier and abutments. The supports are rollers at the two piers with 0 for reaction. Using alternate software returns a value other than 0 at these supports. Can anyone tell me why this is happening. I don't think it likely that the two piers are both values of zero. Any help would be appreciated.
repetitive vehicular live load and dynamic responses under a single truck. LRFD Negative Moment official site Loading reactions, check an additional load case Table 4.6.2.2.2b-1 Distribution of Live Loads Per Lane for Moment in Interior Beams.
Thanks..Rapidfs