论文部分内容阅读
根据事故型撞击下钢筋混凝土壳的变形,建立单自由度体系的刚塑性模型,研究安全壳局部贯穿后塞块的动力响应。该模型中,将纵向钢筋设想为具有相应强度特征和应变特征的钢筋膜,并考虑了安全壳所有结构要素混凝土、箍筋、纵筋和钢衬套的影响作用。根据单自由度模型,建立运动方程。采用数值分析来考虑纵向钢筋含量与刚衬套厚度对事故型撞击下安全壳动力响应的影响。
According to the deformation of reinforced concrete shell under accidental impact, the rigid-plastic model of single degree of freedom system is established to study the dynamic response of the partially penetrated block of containment. In this model, the longitudinal reinforcement is assumed to be a steel membrane with corresponding strength characteristics and strain characteristics, and all the elements of the containment, such as concrete, stirrups, longitudinal reinforcement and steel bushing, are considered. According to the single-degree-of-freedom model, the equations of motion are established. Numerical analysis is used to consider the influence of longitudinal reinforcement content and thickness of bushing on the dynamic response of containment under accidental impact.