钢纤维高强混凝土中钢筋粘结强度试验研究

Experimental investigation on bond strength between bars and steel fiber reinforced high strength concrete

混凝土结构的非线性分析日益受到工程界的重视 ,而钢筋与混凝土的粘结 -滑移关系对分析结果的正确性有着重要影响 ,为此 ,必须获得实际的数值模型或数学关系。为了全面系统地研究体外预应力高强混凝土连续梁的结构行为 ,本文结合高等学校博士学科点专项科研基金项目 ,就高强混凝土、钢纤维高强混凝土与钢筋的粘结 -滑移性能开展实验研究。本文主要叙述了在课题中使用的钢筋。

Engineers pay more and more attention to the nonlinear analysis of concrete structures. The bond stress-slip relationship has an important effect on the analytical results. Therefore, it is necessary to obtain the actual numerical model of bond stress-slip. In order to completely investigate the structural behaviors of externally prestressed high strength concrete continuous beams, the paper focuses on the bond stress-slip relationship between reinforcement and fiber reinforced high strength concrete based on the Research Fund for the Doctoral Program of Higher Education. The main results on ultimate bond strength between reinforcements and fiber reinforced high strength concrete are reported here.