中美建筑结构可靠度体系的对比研究

Comparative Research on Reliability Design Between Chinese and American Structural Design Specification

摘要: 通过比对美国国家标准局《为美国国家标准A58拟定的基于概率的荷载准则》与我国现行可靠度设计标准(GB 50068—2001和GB 50153—2008)的有关规定，分别从可靠度水平的度量指标、可靠度水平的设置原则、影响结构可靠度的不定因素、可靠指标的量值、保证工程可靠度水平的举措等方面对比分析中美两国可靠度体系的异同，为工程概率安全分析以及国内规范的修订提供参考依据。

Abstract: A comparison of reliability design was studied between <Developments of a probability based load criterion for American national standard A58: building code requirements for minimum design loads in buildings and other structures> and Chinese code for reliability design (GB 50068—2001 and GB 50153—2008). It is analyzed similarities and differences of five aspects, such as the definition of reliability, the principle for reliability set, the influence factor, the measurement for reliability index and the method to ensure the reliability level. The conclusions can be referenced for probabilistic safety analysis (PSA) and structure design specification revising in the future.