剪力墙嵌固位置对掉层框剪结构抗倾覆性能的影响

Analysis of the Effect of Different Shear Wall Arrangements on the Overturning Resistance of the Step-terrace Frame-shear Wall Structure

为了考察山地掉层框剪结构在剪力墙不同布置方式的情况下的抗倾覆性能以及相关性能的影响,建立了剪力墙集中布置于结构上接地部位和下接地部位的模型,从剪力分布、倾覆弯矩分布、基底倾覆弯矩以及安全系数等方面进行了对比,探究剪力墙布置位置不同对抗倾覆相关性能带来的差异。结果显示,剪力墙集中布置于上接地端时,掉层框剪结构的抗倾覆性能优于集中布置于下接地端的情况。

To figure out the effect of the overturning resistance and relevant performance of the step-terrace frame-shear wall structure with different shear wall arrangements,models of different placements of shear walls (placed in the upper embedding floor or the lower embedding floor) were built.By comparing several suspects including shear distribution,overturning moment distribution,overturning moment of foundation and safety factory,distinct overturning resistances with distinct shear wall arrangements were explored.Accordingly,overturning resistance of the step-terrace frame-shear wall structure with shear walls arranged at upper embedding floor is better than the one with shear walls arranged at lower embedding floor.