摘要
通过锚杆拉力计控制加载,进行中心直接拔出试验,得出四个不同温度段下变形钢筋与混凝土的粘结滑移曲线;揭示-25℃～15℃间温度变化对粘结强度的影响规律;同时得出不同混凝土强度（C20、C30、C40）、相对锚固长度恒定（la/d=5）且钢筋直径不同（12 mm、14 mm、16 mm）对粘结强度的影响,进一步验证了之前的试验研究.
Through the direct pull-out tests loaded with bold tautness meter, the bond-slip relationship curves between deformed reinforcement bar and concrete are obtained based on four different temperatures between - 25℃ and 15℃ to study the effect of temperature on bond strength; meanwhile, the experimental data show that other factors, such as different concrete strengths （C20, C30, C40） or different diameter（ 12 ram, 14 mm, 16 mm） under constant rate of bond length to diameter（ la/d = 5）, have the same effect on bond-slip behavior as the presently known results.
出处
《建筑科学》
北大核心
2007年第9期51-54,共4页
Building Science
基金
教育部985学科建设基金资助项目(BHB985-1-4)分支项目
关键词
粘结滑移关系
温度
混凝土强度
试验
bond-slip behavior
temperature
concrete strength
experiment
