WHAT HAVE BEEN ACCOMPLISHED:
The project included dismantling of the old Bay Bridge, including the main truss of 1,400-ft span, the 504-ft truss and the 288-ft trusses.
JMEC has been structural consultant for the evaluation of various dismantling sequences and strengthening schemes submitted by the Contractor to ensure a safe dismantling operation.
Working with Caltrans and TYLI, JMEC reviewed construction submittals and verified the bridge dismantling sequence for the 1,400-ft truss by performing stage by stage bridge removal analyses using SAP2000 computer program. In addition, various dismantling schemes for the 504-ft and 288-ft trusses have been evaluated.
The 1,400 feet truss was successful cut in half and reverted to its original cantilever condition on April 2, 2014.