The U. S. Experience with Developing and Implementing a
Probability Based Limit States Bridge Specification

doi:10.3969/j.issn.1674-0696.2011.supp2.015

摘要/Abstract

摘要： Europe，Canada and the United States have been developing new probabilistic limit States Bridge Design Specifications， the Eurocode，the Canadian Highway Bridge Design Code ( and the earlier Ontario Highway Bridge Design Code) and the AASHTO LRFD Specifications for Bridges ( AASHTO LRFD) ． This paper summarizes the seven － year long process that led to the decision to develop the AASHTO LRFD，the objectives，and the draft review process culminating in adoption in 1993． It then describes the implementation and further development during the decade since，and presents an evolving plan to continue development of the limit states specifications for design and rating of bridges．

关键词: specifications, reliability, bridge design, limit states, code calibration

Abstract: 欧洲、加拿大及美国一直致力于研究和发展基于概率的桥梁极限状态设计规范，研究成果包括欧洲规范、加拿大公路桥梁设计规范( 以及早期的安大略省公路桥梁设计规范) 和美国国家公路与运输协会标准体系的美国桥梁设计规范。总结了在7 年的漫长历程中，从最初的决策研究发展AASHTO LRFD 桥梁规范，再到最终于1993 年草案审查与通过的过程; 阐述了近10 年以来对设计规范的补充和进一步发展，并提出了一个发展方案，以不断完善桥梁极限状态的设计与评价规范。

Key words: 规范, 可靠性, 桥梁设计, 极限状态, 规范校准

中图分类号:

U442.5⁺1

J.M.Kulicki. The U. S. Experience with Developing and Implementing a Probability Based Limit States Bridge Specification[J]. 重庆交通大学学报（自然科学版）, 2011, 30(S2): 1165-1184.

J.M.Kulicki. 基于概率的桥梁极限状态设计规范在美国实施的经验[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(S2): 1165-1184.

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