Location
STEW206
Session Number
3
Session Title
Design and Launching of Redundant Truss Over RR Yard
Track Title
Bridges
Event Description/Abstract
Five deteriorating trusses over the BNSF Northtown rail yard in Minneapolis need replacement. The new skewed 305-foot truss and two-span steel girder meet the RR’s desire to eliminate two piers in their yard. The truss incorporates unique redundancy measures, including eliminating fracture-critical steel truss members and gusset plates and using a post-tensioned concrete bottom chord. Removal of the two existing truss spans and installation of the new truss is accomplished using a launching system. Come learn about this project.
Design and Launching of Redundant Truss Over Railroad Yard
STEW206
Five deteriorating trusses over the BNSF Northtown rail yard in Minneapolis need replacement. The new skewed 305-foot truss and two-span steel girder meet the RR’s desire to eliminate two piers in their yard. The truss incorporates unique redundancy measures, including eliminating fracture-critical steel truss members and gusset plates and using a post-tensioned concrete bottom chord. Removal of the two existing truss spans and installation of the new truss is accomplished using a launching system. Come learn about this project.
