Laboratory and Field Testing of an Accelerated Bridge Construction Demonstration Bridge: US Highway 6 Bridge over Keg Creek. Tech transfer summary.

摘要

To address the need for the development of a fast, repeatable, and dependable way to replace typical bridges across the country, the Transportation Research Board (TRB) developed project R04, Innovative Designs for Rapid Renewal, as part of the Second Strategic Highway Research Program (SHRP 2). The goal of this project was to develop standardized accelerated bridge construction (ABC) systems for nationwide use (Iowa DOT 2011). As part of the SHRP 2 Project R04, the Iowa Department of Transportation (DOT) was asked to select a demonstration bridge site to implement some of the ABC design concepts being developed. The Iowa DOT selected a replacement bridge site in western Iowa on US Highway 6 over Keg Creek in Pottawattamie County. This site was selected due to the abundance of similar three-span bridges in Iowa and many other states. Bridge engineers wanted to ensure that what was learned from the R04 project would be applicable to future bridge projects (Iowa DOT 2011).