Preparation of Steel Shop Fabrication Drawings

Client
Han-Padron Associates, LLP (now CH2M HILL)
Eleven Penn Plaza
New York, New York 10001

Completion Date
April, 1998

Project Description
Han-Padron Associates engaged Energy Associates to support their design engineering efforts on the Amtrak Northend Electrification Project. As part of the rail electrification of the north corridor, both swing and bascule bridges are encountered on this rail line. A unique structural support system for the electrical contract wires, negative feeder wire, and messenger wire was required. In addition, limitations were imposed on the design due to the requirement for galvanizing all steel. Steel sections and fabricated trusses must be within the size requirements of commercial the galvanizing tank dimensions. The primary Contractor (Balfour Beatty Construction and Mass. Electric Construction, J.V.) required that the erection and shop fabrication drawings be completed with the engineering drawings. Energy Associates assisted Han-Padron by completing the structural steel erection and shop fabrication drawings.

The illustration below is one major beam that supports a travelling gantry on the Connecticut River Bridge.