【摘 要】
：
Accelerated Bridge Construction (ABC) applications in the U.S.have developed two different approaches;accelerated construction of bridges in place using pre
【机 构】
：
HNTB Corporation,New York,NY,USA
【出 处】
：
The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Accelerated Bridge Construction (ABC) applications in the U.S.have developed two different approaches;accelerated construction of bridges in place using prefabricated systems and the use of bridge movement technology and equipment to move completed bridges from an off-aligrmaent location into the final position.Each of these methods is gaining increased acceptance with the use of prefabricated elements to replace bridges in place being more popular within the industry.Despite the gradual lowering of costs and life-cycle cost savings,bridge owners in the US are hesitant about using ABC techniques because of their perceived risks and higher initial costs.Rather than custom engineering every solution,pre-engineered modular systems configured for traditional construction equipment could promote more widespread use of ABC through reduced costs and increased familiarity of these systems among owners,contractors and designers.An objective of the ongoing Strategic Highway Research Program 2 (SHRP2) R04 project,with HNTB as the prime contractor,is to develop "standardized approaches to designing and constructing complete bridge systems for rapid renewals".
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