摘要
采用足尺模型对比试验方法,对现浇整体式高强混凝土节点J1、预制结构装配整体式高强混凝土节点J2和不同体积含量的钢纤维高强混凝土节点J3,J4在低周反复荷载作用下的滞回性能进行了研究。结果表明,采用钢纤维高强混凝土浇筑预制混凝土结构后浇节点,可以减少核心区箍筋用量,提高节点承载能力,容易实现“强节点”,改善梁筋在节点内的粘结滑移,有利于提高组合件的耗能能力。
By comparing experimental research on the three types of full-scale models： monolithic joints with high strength concrete, concrete and steel-fiber filled precast high strength concrete joints under low reversed cyclic loading. The results indicate that partial stirrups can be saved by using of steel fiber concrete to cast the joints of precast concrete structures ,which may facilitate casting concrete. Moreover,the steel fiber in joints can dramatically improve tensile strength and ductility of concrete herein as well as reduce bond-slip of bar and easily come into being elastic joint.
出处
《四川建筑科学研究》
北大核心
2006年第4期11-15,40,共6页
Sichuan Building Science
关键词
预制混凝土结构
节点
钢纤维混凝土
滞回曲线
precast concrete structures
seismic joints
steel-fiber-filled concrete
hysteretic response
