General Dynamics Electric Boat (EB), Submarine Hull Fabrication Facilities, North Kingston, RI

ABOUT THIS PROJECT

General Dynamics Electric Boat (EB) is a primary builder of submarines for the US Navy. For the client, Midwest Steel, our team was asked to provide erection stability, crane logistics, lift device design, and truss rigging for four new hull fabrication and outfitting facilities totaling 450,000 sf. The buildings include overhead cranes, offices, and maintenance areas beyond the large fabrication bays.
The three-bay facilities include 125’ tall built-up columns weighing 175,00 each. Our firm’s scope included reviewing the EOR’s details to ensure erectablity; and design the necessary, rigging to hoist and set roof trusses spanning 227’ and weighing 192,000. The team was challenged with setting the first truss while maintaining stability during erection. Pulled ahead in sequenced erection due to heavy wind conditions experienced along the East Coast.