带缝钢筋砼剪力墙的非线性地震反应分析

对作者提出的一种抗震自控结构——带竖缝剪力墙作了非线性地震反应分析.分析中运用了具有足够精度的带缝剪力墙结构的简化计算模型,使计算大大简化而结果的可靠性不减,旨在考察带缝剪力墙的实际动力反应和抗震自控效果.计算结果表明,带缝剪力墙中缝槽间连梁的不断屈服能明显减弱整体结构的动力反应;而且通过设计连梁的屈服强度值,能优化控制带缝剪力墙的地震反应.

Nonlinear Seismic Response of Reinforced Concrete Slit Shear Walls

A reinforced concrete slit shear wall is a new breed of earthquake resistant structure recently proposed by the authors. In this paper, the seismic responses of the slit shear walls under the shake of earthquake excitation heve been dealt with. Based on a simplified structural model, which is shown to have a sufficient accuracy for the real slit shear wall structure, the analysis focuses on the influence of nonlinear behavior of the connecting beams between the slits on the dynamic performance of the whole slit shear wall structure. It has been found, the yielding of connecting beams in a slit shear wall can provide significant improvement in reducing the structural responses, and by choosing an appropriate strength value for the connecting beams, it is possible to optimize the seismic response of the slit shear wall.