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本文简要地讨论了美国国家公路与运输协会新的桥梁抗震指导规范的主要变化。该修订规范是由国家公路合作研究规划项目于2006年5月完成的。拟被美国国家公路与运输协会采用,国家公路合作研究规划项目20-07/专题193于2007年被正式采用。
This article briefly discusses the major changes in the new Aseismic Guideline for Bridges for the National Highway and Transportation Association. The revised specification was completed in May 2006 by the National Highway Cooperative Research Project. To be adopted by the National Highway and Transportation Association, National Highway Cooperative Research Project 20-07 / Special 193 was formally adopted in 2007.