ACCELERATED BRIDGE CONSTRUCTION IN AREAS OF HIGH OR MODERATE SEISMISITY

The need for rapid construction arises from the inevitable increases in traffic congestion that have occurred in the past few decades, and the corresponding costs and safety manifested in many forms, including exposure of workers to traffic hazards, and most importantly, the waste of time due to delays. Prefabricated bridge components are in increasing demand for accelerated bridge construction. Precasting eliminates the need for forming, casting, and curing of concrete in the work zones, making bridge construction safer while improving quality and durability. This paper provides an overview of WSDOT precast bridges, relevant research and bridge projects using precast members.