作为结构设计的基本理论内容之一，课程重点介绍结构可靠性设计的基本理论方法和方法，包括可靠度理论所涉及的数理统计等数学概念、极限状态方程、失效概率、可靠度指标以及一次二阶矩方法等等。课程还包括荷载及抗力统计特征的确定方法。即荷载及抗力统计分析。课程内容还包括我国"统一标准"采用的设计可靠指标，实用设计表达式以及表达式中各分项系数（荷载分项系数、荷载组合系数、结构抗力分项系数、结构重要性系数）的确定原则方法。

As the elementory knowledge in structural design, the focus of this course is on the basic theory and methods about structural reliability.The objective of this course is to provide students with practical tool for reliability analysis of structure. The contents of the course are divided into nine parts. In the first part, the concept of structural reliability, the historical perspective and the sources of uncertainty in structural design are introduced. In the second part, the theory of probability and statistics are briefly reviewed. The contents include the basic definitions and formulas needed for reliability analysis, such as random variable, parameter estimation, probability distribution. The definitions of limit state function and reliability index are introduced in part 3. With the definitions, the structural reliability problem is formulated. In this chapter, the simple second-moment mean value formulas are also presented. The Hasofer-Lind reliability index is defined in part 4. Based upon the theory, The relevant procedure is shown for non-linear function. In part 5 load models and resistance models are discussed. Some techniques for combining loads and errors due to the models are analyzed. The reliability-based design code adopted in China is outlined in part 6. The basic steps for determining load and resistance factors are presented in this part also. Part 7 deals with the topic of system reliability. The formulas are presented for a series system and parallel system and the effect of correlation between parameters on the reliability is evaluated. In next part, time-dependent capacity of resistance, durability of Structures and the factors which influence on reliability of structures are discussed. Some problems about reliability of structures are presented in the last part.