Erecting a 300-ft Span Roof Truss Without Shoring [N77]

The double hinge pick procedure is an innovative method of erecting long-span arched trusses and was used for a hangar structure at Wright Patterson Air Force Base in Dayton, Ohio.ÊThis session will focus on the erection design and process, showing how the three segments were ground-assembled at each of two end pins and hinged up by a special truss lift frame before the keystone piece was then installed.

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