【摘要】 通过对两根再生混凝土试件(再生骨料替代率为100%)在低周反复纯扭荷载作用下的抗震性能试验,对再生混凝土纯扭试件的破坏形态、滞回曲线、骨架曲线、延性、耗能能力等进行了分析。研究表明,再生混凝土受扭试件在低周反复扭矩作用下滞回环呈反S形,延性系数在3.67～4.14之间,具有良好的抗震性能。结合混凝土结构设计规范推导了抗扭承载力的计算公式,其计算值与试验值符合较好,具有一定的参考价值。更多还原

【Abstract】 A study is conducted on the seismic behavior of two recycled concrete members with 100% recycled coarse aggregate under the low frequency reversed torsion.The seismic behavior of recycled concrete members such as failure features,hysteresis loops,ductility,degeneration of strength and stiffness and energy dissipation under seismic loads are investigated.The test and analyses show that the recycled concrete member can be used to structures because of its good seismic behavior.The formula for calculating the torsional capacity of members made of recycled aggregate concrete is proposed.The predictions of the formula agree well with the experimental results.更多还原