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.
Session Number
3
Session Title
Design and Launching of Redundant Truss Over RR Yard
Track Title
Bridges
Location
STEW206
Date of Version
March 2018
Start Date
3-6-2018 2:00 PM
End Date
3-6-2018 2:50 PM
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.
