Is anyone familiar with splices for "Jack Beams" in prefabricated steel frame structures? I am wondering if this was supposed to be a hinge. The beam is experiencing lateral-torsional buckling and I'm curious if these splices are problematic. In the attached pictures there is a W section bolted...
Looking for typical repairs made to steel bar joist, more specifically, I am trying to discern at what point the section losses observed require replacement vs. rehabilitation/repair.
Structure: Maintenance Bus Facility, 90' x 100' with 48" deep bar joist roof spanning CMU walls.
Problem...
