The Year in Infrastructure 2007 - (Page 72) ciVil structural analysis, design and dOcumentatiOn Design of New Jubilee Bridge rites ltd finalist Originally constructed in 1887, the Jubilee Bridge provides an important railway link across the river hooghly. Although it is still operational, the bridge has severe speed restrictions, so Eastern Railway planned to construct a new one. It commissioned RITES to carry out the detailed studies and recommend a location for the New Jubilee Bridge. RITES designed a 415.60-meter three-span rail bridge with continuous superstructure used — a first at Indian Railways. The cost of the bridge including substructure is approximately $30 million. RITES used Bentley’s STAAD. Pro for analysis of the bridge superstructure and MXRAIL for alignment. These tools provided an efficient and robust analysis engine whose visualization tools, user-friendly interface, and customized report generation efficiently modeled the superstructure model. Montgomery Lock and Dam Lift Gate us army corps of engineers, pittsburgh, pa finalist The US Army Corps of Engineers Montgomery Dam Lift Gate in Pittsburgh, Pennsylvania, is the second-busiest inland port in the nation. The gates were destroyed in a 2006 navigation accident and the new engineering solution was predicated on reusing the 1936-vintage gate-lifting machinery and ensuring the new gates would be readily adaptable to a future newgeneration hydraulic lifting system. With the overall weight and center of gravity being a critical factor in the design of the new gates, the use of 3D modeling was essential. Bentley’s STAAD.Pro enabled a design that was more efficient, robust, redundant, and resilient than the original. The design included the reuse of existing hoist machinery and its limited lifting capacity — constraints imposed by compatibility with the geometry of the existing pier, alignment of lifting points, and mating of embedded metal sealing surfaces with sealing surface of the gate. 72 ThE YEAR IN INFRASTRUCTURE 2007
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