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本文通过一系列全面综合的抗震研究项目,简要介绍了美国在交通结构物的抗震防护领域取得的研究进展。这个项目由1991年的交通权益法案(TEA)启动,历经三个交通权益法案(TEA)时代,研究任务的投入累计达3600万美元。项目重点关注三个基本问题:第一,适用于所有新建公路项目的抗震设计最新规范;第二,适用于所有现存公路建设项目的抗震加固手册;第三,启动系统风险分析项目,评估运用网络系统方法设计的道路系统的地震损失。良好的预防措施是减少或规避公路设施地震损失最重要的因素。
Through a series of comprehensive and comprehensive seismic research projects, this paper briefly introduces the research progress made by the United States in the field of seismic protection of traffic structures. The project was started by the Transport Rights Act of 1991 (TEA). After three Traffic Rights Act (TEA) era, the research mission has totaled 36 million U.S. dollars. The project focuses on three basic issues: first, applicable to the latest codes of seismic design for all new road projects; second, manual for seismic strengthening of all existing highway construction projects; and third, starting systematic risk analysis projects and evaluating the use of networks Earthquake Loss of Road System Designed by System Approach. Good precautions are the most important factor in reducing or avoiding earthquake damage to road facilities.