Abstract: In this paper, the principles of structural reliability calculations and calibration of the highway bridge structure desigh standards in force against the method of design checking calculation point are introduced. We can determine the reliability index β of the variant structural components by this method, which is one of the second moment probabilistic engineering design algorithms. This probabilistic design method is closely related to optimization in design. Some examples are given to illustrate the proposed method. A PC-1500 main program of computation of reliability β have been provided in the appendix of the paper.

摘要： 本文介绍结构可靠度计算和用设计验算点法对公路桥梁结构现行设计规范进行校准的原理,此方法是一种二阶矩概率工程设计法,用它可以求出各种结构构件的可靠度指标β。这种概率设计方法是和设计优化密切相关的。一些例题用来说明文中给出的方法,计算β值的主程序、(PC-1500机)放在本文的附录里。