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用取代率为85%再生粗骨料制作3个再生骨料混凝土空心砌块墙体试件RACHBW,在不同竖向荷载作用下对RACHBW试件进行水平低周往复加载,通过试验研究分析RACHBW试件的承载能力、破坏过程及破坏特征,并从滞回特性、骨架曲线、延性、耗能能力等方面分析了其抗震性能。试验结果表明:RACHBW试件在水平低周反复荷载作用下的破坏过程与天然骨料混凝土空心砌块墙体(NCHBW)相似,RACHBW试件滞回曲线饱满,延性较好,具有良好的抗震性能,可望在实际工程应用中大力推广。
Recycled coarse aggregate with 85% replacement rate was used to make RACHBW specimens of three recycled aggregate concrete hollow block wall specimens. The RACHBW specimens were reciprocally loaded horizontally and vertically at different vertical loads. The RACHBW test The bearing capacity, failure process and failure characteristics of the members were analyzed. The seismic performance was also analyzed from the aspects of hysteresis characteristics, skeleton curves, ductility and energy dissipation capacity. The experimental results show that the failure process of RACHBW specimen is similar to that of natural aggregate concrete hollow block wall (NCHBW). The RACHBW specimen has a good hysteresis curve with good ductility and good anti-seismic performance , Is expected to promote in practical engineering applications.