李元齐，袁艳敏
    (同济大学建筑工程系，上海200092)

[摘要] 随着社会经济的发展，不同体系的建筑钢结构越来越广泛地应用于工程实践。与此同时，既有的和在建的钢结构工程事故也时有发生，因此，对钢结构建筑进行健康检测并据此进行科学的结构可靠性评估就显得十分重要。本文介绍了既有建筑可靠性评估理论研究现状及相关标准，重点讨论了目前检测中基于抽样检测得到的小样本信息进行结构可靠性评估存在的问题。最后，提出了基于有限健康检测／监测信息的结构可靠性评估策略，为进一步的研究提供参考。
[关键词] 建筑钢结构，结构可靠性，评估策略

    Study on Reliability Assessment of Steel Building Structures
    Li Yuanqi, Yuan Yanmin
    ( Department of Building Engineering, Tongji University, Shanghai 200092, China)

Abstract:  With rapid development of economy in china, many kinds of steel structural systems have been widely used in buildings with different functions. In the meanwhile, engineering accidents of existing and being built steel structures also have happened occasionally. Therefore, healthy inspection of steel buildings and scientific structural reliability assessment are very important. In this paper, the state of art of reliability assessment theories of existing buildings and relevant standards is briefly reviewed.  Special attention is paid to the problems existing in structural reliability assessment based on limited information from limited samples on site. Finally, an assessment strategy based on limited inspecting information is proposed for this issue, which may provide reference for further study.
Keywords: steel buildings; structural reliability; assessment strategy