product case study/MicroStation-Marquette Interchange, Milwaukee

摘要

THE REBUILDING OF MILWAUKEE'S MARQUETTE INTERCHANGE IS ONE OF THE LARGEST TRANSPORTATION PROJECTS UNDER-WAY IN THE UNITED STATES. AMONG THE MANY CHALLENGES OF THIS 810 MILLION DOLLARS PROJECT WAS THE DESIGN OF MORE THAN 50 BRIDGE STRUCTURES. Eight curved steel box girder bridges on high-level system interchange ramps, at heights of up to 125', range in length from 900' to more than 2,000' and have spans of up to 250' long. The Milwaukee office of CH2M HILL was responsible for the project's design work, which began in 2001. The design team applied Bentley Systems, Inc.'s MicroStation VBA technology and innovation to save its client--the Wisconsin Department of Transportation--and the public both time and money. "We made a considerable improvement on the conventional delivery model by developing a series of MicroStation VBA (Visual Basic for Applications) and Visual Basic programs that take advantage of the structured nature of bridge design to automate portions of the detailed design phase," said Kevin Willis, bridge engineer for CH2M HILL.