BRIDGE APPLICATIONS OF COMPOSITE CONSTRUCTION IN THE U.S.

The development of innovative methods in the use of composite construction for bridges in the U.S, is an ongoing process that depends on economy, aesthetics, time constraints and other factors. Three advancements in composite bridge construction in the U.S. that are gaining increasing acceptance in the industry or are unique solutions to bridge-specific problems, are discussed in this paper. First, the use of precast concrete deck panels for steel beam and girder bridges is reviewed. Secondly, the design and analysis of long-span cable-stayed steel composite bridges is discussed. Finally, an innovative composite construction system is presented for the cable anchorage system for the cable-stayed Charles River Bridge in Boston.