梁结构疲劳刚度退化对模态频率的影响
卫军(),杜永潇,梁曼舒
Influence of fatigue stiffness degradation for beam structure on modal frequency
Jun WEI(),Yong-xiao DU,Man-shu LIANG

图 2. 预应力混凝土模型梁实体图

Fig.2. Physical map of PC model beam