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为了研究带竖向缝槽砌体填充墙对框架结构抗震性能的影响,开展了3榀带竖向缝槽砌体填充墙框架结构模型、1榀整体砌体填充墙框架结构模型和1榀纯框架结构模型在低周反复荷载作用下的对比试验。对比分析了各试件的破坏特征、滞回曲线、骨架曲线、位移延性、刚度退化、承载力退化和耗能性能等。结果表明:砌体填充墙的存在显著提高了框架结构的抗侧刚度和水平承载力,砌体填充墙参与了结构的滞回耗能,砌体填充墙框架的累积耗能能力明显优于纯框架;在填充墙与框架柱间设置一定宽度的竖向缝槽,减少了两者间的相互作用,延缓了填充墙和框架梁、柱的开裂,其水平承载力介于纯框架和整体填充墙框架之间,但其延性和耗能能力得到了较大的改善;在填充墙中设置一定宽度的竖向缝槽形成带竖向缝槽砌体填充墙框架,其水平承载力介于纯框架和整体填充墙框架水平承载力之间,其极限位移角与纯框架的基本相同,具有较好的延性和耗能能力。
In order to study the effect of vertical slotted masonry infill walls on the seismic performance of frame structures, three models of frame structures with vertical slotted masonry infill walls were developed. One model of the whole masonry infill wall frame structure and one 榀 pure Contrast Test of Frame Structure Model under Low Cycle Loads. The failure characteristics, hysteresis curves, skeleton curves, displacement ductility, stiffness degradation, bearing capacity degradation and energy dissipation performance of each specimen were compared and analyzed. The results show that the existence of masonry infill walls significantly improves the lateral stiffness and horizontal bearing capacity of the frame structure, and the masonry infilled walls participate in the hysteretic energy dissipation of the structure. The cumulative energy dissipation capacity of the masonry infilled wall frame is obviously better than that of pure Frame; Set a certain width of the vertical slot between the infill wall and the frame column to reduce the interaction between the two, delay the cracking of the infilled wall and the frame beams and columns, the horizontal bearing capacity between the pure frame and the overall fill Wall frame, but its ductility and energy dissipation capacity have been greatly improved; set a certain width of the vertical slot in the infill wall to form a vertical slotted masonry infilled wall frame, the horizontal bearing capacity between pure Between the frame and the whole frame of horizontal infill wall, its ultimate displacement angle is basically the same as that of the pure frame, which has good ductility and energy dissipation capacity.