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为研究栓钉用量对大长宽比型钢混凝土短柱抗震性能的影响,对不同栓钉用量的3个型钢混凝土短柱进行抗震性能试验研究。研究结果表明:增加栓钉的用量对型钢混凝土短柱的水平承载力影响不大,但可增加型钢与混凝土之间的摩擦耗能面积,提高构件的耗能能力;此外,不论栓钉设置与否,型钢混凝土短柱均具有良好的延性和塑性变形能力,但栓钉用量的增加会加剧构件裂缝发展,降低构件延性。因此,建议型钢混凝土短柱设计时,可适当放宽栓钉用量,间距100mm以上为宜。
In order to study the influence of the amount of pegs on the seismic behavior of short concrete columns with large aspect ratio, the seismic behavior of three SRC columns with different peg loads was studied. The results show that increasing the amount of pegs has little effect on the horizontal bearing capacity of SRC but can increase the friction energy consumption area between SRC and concrete and increase the energy dissipation capacity of the members. In addition, No, the short steel-reinforced concrete columns have good ductility and plastic deformation capacity, but the increase of the amount of pegs will aggravate the development of crack components and reduce the ductility of the components. Therefore, the proposed design of short steel columns can be appropriate to relax the amount of studs, spacing 100mm above is appropriate.