底部铰支自复位钢筋混凝土剪力墙设计与性能研究

Design and Performance Study of Bottom Hinged Self Resetting Reinforced Concrete Shear Wall

为了能够在极大程度上防止钢筋混凝土剪力墙在高强度地震时发生墙脚坍塌、墙体损坏等不良现象,结合目前的发展状况研究出了一种新型的底部铰支自复位钢筋混凝土剪力墙。底部铰支自复位混凝土剪力墙是对以往混凝土剪力墙被损坏严重的底部区域进行换取,其上方区域的墙板可以通过V字连接架进行基础铰接。另外,周围两方的墙脚区域可以安放具有双线滞回特点的复位支撑,从而能够在极大程度上将墙板内部的内力进行完整的解构,墙体下方能够最大限度地实现弹性旋转约束,最终使剪力墙弹性有效侧移,最大化地减少墙体的破坏程度和残余位移。

In order to prevent the wall foot collapse and wall damage of reinforced concrete shear wall in high-strength earthquake to a great extent, and combined with the current development situation, a new type of bottom hinged self resetting reinforced concrete shear wall is studied. The bottom hinged self resetting concrete shear wall is to exchange the bottom area where the previous concrete shear wall has been seriously damaged. The wallboard in the upper area can be hinged through the V-shaped connecting frame. In addition, the reset support with double line hysteretic characteristics can be placed in the wall foot area on both sides, so that the internal force inside the wallboard can be integrated to a great extent, Under the wall, the elastic rotation constraint can be realized to the greatest extent, and finally the shear wall can move elastically and effectively, so as to minimize the damage degree and residual displacement of the wall.