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通过对无齿直缝植抗剪筋、剔凿混凝土保护层植抗剪筋两种柱后接梁接头形式的试验研究,讨论后接梁柱界面的抗剪性能,以及抗剪筋对接头抗剪性能的影响。试验结果证实:这两种接头形式都具有较好的抗剪能力,其受剪承载力均可以达到整浇式的水平,且植入抗剪筋有利于提高后接梁柱界面的受剪承载力,无齿直缝接头形式梁柱界面相对滑移小于剔凿混凝土保护层的接头形式。本文讨论了此两种接头形式的抗剪性能及机理,并建立了受剪承载力的验算方法,所提建议公式与实验结果相吻合,可供工程设计参考。
Through the experimental research on the connection form of the two kinds of post-beam joints of the toothless straight seam planting anti-shear bar and the concrete cutters, the shear resistance of the post-beam-column interface is discussed, Shear the impact of performance. The test results show that both of these joint types have good shear resistance, and the shear capacity of the two joints can reach the level of the whole pouring. Implantation of shear reinforcement helps to improve the shear bearing of the post-beam-column interface Force, toothless straight joint form of beam-column interface is relatively slippery less than concrete structure of concrete joints. In this paper, the shear performance and mechanism of the two kinds of joints are discussed, and the checking method of the shear capacity is established. The proposed formulas are in good agreement with the experimental ones and can be used for engineering design reference.