本文应用专家系统实现了对建筑结构知识的表示与分解,并构建了层次关系模型。同时采用因素关系图描述了结构因素层次关系和因果关系,综合考虑了大量影响因素。并以钢筋混凝土单层工业厂房为例,提取其层次实例库与分析体系,以及相应的推理知识,有效的实现了结构的可靠性评估。 In this paper, we use expert system to realize the representation and decomposition of building structure knowledge, and construct the hierarchical relation model. At the same time, the relationship between structural factors and causality is described by using the relationship diagram of factors, considering a large number of influencing factors. Taking reinforced concrete monolayer industrial factory as an example, the level instance library and analysis system are extracted, and the corresponding reasoning knowledge is extracted, so as to effectively evaluate the reliability of the structure.