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原文传递 Performance of Bridges That Received Funding Under the Innovative Bridge Research and Construction Program.

题名：	Performance of Bridges That Received Funding Under the Innovative Bridge Research and Construction Program.
关键词：	Bridge research project, Fiber-Reinforced Polymer (FRP), Performance, Recommendations, Accelerated Bridge Construction (ABC), U.S. Department of Transportation (USDOT), Transportation Research Board (TRB)
摘要：	The Innovative Bridge Research and Construction (IBRC) program, created by an act of Congress in 1998, provided grants to state transportation departments as incentives for use of innovative materials and technologies in the construction and repair of highway bridges. The program awarded $128.7 million to approximately 400 projects from 1999 to 2005. Materials used included fiber-reinforced polymer (FRP) composites, high-performance concrete (HPC), high-performance steel (HPS), and corrosion-resistant reinforcing bar (rebar). Projects also demonstrated accelerated bridge construction (ABC) techniques. As directed by Congress, the U.S. Department of Transportation (USDOT) commissioned the Transportation Research Board (TRB) to study the performance of the bridges that received funding in the IBRC program. TRB formed a committee charged with four tasks: analyze the performance of bridges that received funding in meeting the program’s goals; analyze the utility of the materials and technologies used in IBRC projects in meeting needs for a sustainable and low life-cycle cost transportation system; recommend to Congress how life-cycle costs of bridges could be reduced through use of innovative technologies; and identify research needed to reduce bridge life-cycle costs. To respond to the charge, the committee examined how the experience of the IBRC projects affected highway agency practices, in particular, whether the technologies used in the states’ IBRC projects were incorporated in regular practice, and examined data on the performance of the IBRC bridges. The principal sources of information were interviews with the staffs of 10 state transportation agencies that participated in the program and records of the IBRC projects. The first three chapters of the report summarize the committee’s conclusions on the extent to which the IBRC projects met the goals of the program, the utility of the technologies, and opportunities to reduce life-cycle costs of bridges. The final chapter presents recommendations.
报告类型：	科技报告