为合理判别单层网壳结构在强震下的两类失效模式,指导网壳工程在地震区的实践,该文采用考虑材料损伤累积的荷载域全程分析方法,对单层球面网壳和单层柱面网壳在动力荷载下(包括强震)的响应进行了系统的参数分析。简述了两类失效模式的结构表现及结构响应特征;引入模糊数学中的模糊综合判定理论,确定了网壳结构多项响应因素与模糊失效模式集合的关系,建立了基于模糊综合判定的网壳结构动力失效模式判别模型;通过分析表明:所建立的模型具有准确的判别效果,可对网壳结构在动力荷载下的失效模式进行判别。 In order to reasonably determine the two types of failure modes of single-layer reticulated shell structures under strong earthquakes and guide the practice of reticulated shells in the seismic area, a full-scale analysis of load field considering material damage accumulation is carried out. The systematic analysis of the response of layer cylindrical reticulated shells under dynamic loads (including strong earthquakes). The structural performance and structural response characteristics of two types of failure modes are briefly described. The fuzzy comprehensive judgment theory in fuzzy mathematics is introduced to determine the relationship between the multiple response factors and the set of fuzzy failure modes, and the network based on fuzzy comprehensive judgment The results show that the established model has an accurate discriminating effect and can distinguish the failure modes of reticulated shell under dynamic load.