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By Tancrède de Folleville and Jean-Bernard Datry
La Seine Musicale, a world-class concert hall on a redeveloping island west of Paris, is a masterpiece of structural, acoustic, and mechanical engineering. Resembling a ship at sea, the concrete structure supports a glassy, egg-shaped auditorium flanked by a shimmering "sail" that moves with the sun, shading the globe and generating solar power.
By Scott Eshleman, P.E., S.E., and Rob Koss, P.E.
The $95-million effort to first widen and then replace the 1,315 ft long Fox River Bridge, in Elgin, Illinois, faced myriad obstacles, including the need to avoid causing traffic delays on a busy stretch of Interstate 90. To accomplish this goal while meeting strict construction scheduling deadlines, the project team devised a unique approach to build the new bridge's substructure beneath the existing bridge. Using an innovative gantry system--instead of cranes on the existing bridge deck--to place beams also helped to minimize deleterious effects on traffic.
by Tara Hoke
A consultant belatedly tries to get a temporary license to practice, after saving a project to the satisfaction of all parties, which results in disciplinary action.
A Question of Ethics
by T.R. Witcher
The bridge represented a series of firsts: the first major bridge to use predominantly steel for its structural system, the first to use pneumatic caissons, and one of the first built using the cantilevered construction method.
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