It is necessary to elaborate on the definition of a fatigue coefficient such as that for ductility.
有必要对疲劳系数，如延性系数的定义作详细讨论。
2
Comparing two types of damage model, it is proposed to adopt the model based on the ductilitycoefficient.
通过比较两种不同的损伤模型，建议采用一个基于延性系数的损伤模型。
3
Based on the piers mode shape function, this paper studied the methodology of structure ductilitycoefficient by modal test and the procedure of the structures inelastic seismic force.