为了调查连接的地震行为,钢创作了增强的极端高力量水泥(SRUHSC ) 列和增强的水泥(RC ) 微笑,六个内部 strong-column-weak-beam 连接标本被测试使周期的负担遭到了到颠倒。韧性,精力驱散能力,力量降级和刚硬降级上的应用轴的负担比率和容量的马镫比率的效果被讨论。所有连接标本在与横梁塑料绞链以一种可锻的方式弯曲失败了,这被发现。韧性和精力驱散能力与应用轴的负担比率的减少或容量的马镫比率的增加增加了。抑制系数钢在那些之间放了的排水量韧性系数和等价物增强了增强的具体连接的平常的具体连接和那些。应用轴的负担比率和容量的马镫比率在僵硬降级上的力量降级和更多的影响上有更少的影响。僵硬与容量的马镫比率的减少或应用轴的负担比率的增加严厉地降级了。试验性的结果显示那 SRUHSC 列和 RC 横梁连接展出了更好地震的性能并且能为设计申请提供参考。
To investigate the seismic behavior of connections composed of steel reinforced ultra high strength concrete (SRUHSC) column and reinforced concrete (RC) beam, six interior strong-column-weak-beam connection specimens were tested subjected to reversal cyclic load. Effects of applied axial load ratio and volumetric stirrup ratio on ductility, energy dissipation capacity, strength degradation and rigidity degradation were discussed. It was found that all connection specimens failed in bending in a ductile manner with a beam plastic hinge. The ductility and energy dissipation capacity increased with the decrease of applied axial load ratio or increase of volumetric stirrup ratio. The displacement ductility coefficient and equivalent damping coefficient lay between those of steel reinforced ordinary concrete connection and those of reinforced concrete connection. The applied axial load ratio and volumetric stirrup ratio had less influence on the strength degradation and more influence on the stiffness degradation. The stiffness degraded sharply with the decrease of volumetric stirrup ratio or increase of applied axial load ratio. The experimental results indicate that SRUHSC column and RC beam connection exhibited better seismic performance and can provide reference for engineering application.