填充粘弹性材料的开缝钢筋混凝土剪力墙性能试验研究

Research on the Performance of Slotted Reinforced Concrete Shear Wall Filled with Viscoelastic Material

建立了填充粘弹性材料的开缝钢筋混凝土剪力墙的力学模型,基于通用有限元软件ABAQU S,对具有不同形式的钢筋混凝土剪力墙进行了数值模拟,通过对其在相同加载速率下的弹塑性分析,探讨了开缝填充粘弹性材料的剪力墙和整体墙、开缝墙的性能,以及粘弹性材料缝的尺寸等因素对剪力墙性能的影响。试验结果表明,开缝后填充粘弹性材料,在剪力墙承载力降低不大的前提下,很好地提高了墙体的延性与耗能能力,性能优于其他2种形式的剪力墙,并且剪力墙的承载力和延性受粘弹性材料竖缝的长度的影响较大,而受开缝宽度的影响则很小。

The mechanical model of slotted concrete shear wall filled with viscoelastic material is established in this paper.Based on the finite element software Abaqus,reinforced concrete shear walls with different forms are simulated.Through the elastic-plastic analysis under the same loading rate,the performance of the slotted shear wall filled with viscoelastic material,the monolithic wall and the shear wall are discussed.The influence of slot size on behavior of shear walls is also considered.The results show that ductility and energy dissipation of the slotted shear wall filled with viscoelastic material are well improved under the conditions of slight bearing capacity decreasing.The performance of bearing capacity reduce is better than the other two forms of walls.The performance of shear wall is mainly controlled by the length of slot filled with viscoelastic material,but not the slot width.