装配式钢筋混凝土大板结构接合部抗震性能研究

Study of seismic behavior of connections of precast large panel concrete structure

通过18榀带有抗剪凸起部的预制构造接合部在低周反复荷载作用下的试验研究,绘出了各试件的荷载-位移滞回曲线,计算了滞回环的累计面积,通过对滞回曲线的分析,探讨了接合部宽度及结合筋直径对接合部承载力及延性的影响。分析表明:随着结合部宽度和接合筋直径的增大,延性增强;随接合筋直径和强度的增大,结合部承载力增大。

Eighteen specimens of precast concrete connections are tested under low cyclic reversed loading. The loadingdisplacement hysteretic curves of the specimens are obtained.The areas of the hysteresis loops have been caculated. Based on the analysis of the loadingdisplacement hysteretic curves,the effect of the panel's dimension on the ductility and bearing capacity of the specimens is investigated. The results show that the ductlity increases when the connection width and the diameter of the joint steel increase,and the connection strength increases when the diameter and strength of the joint steel increase.