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通过对大尺度废弃混凝土与普通混凝土的再生混合,并对混合短柱进行疲劳性能试验,将强度较普通混凝土偏低的废弃混凝土块体掺入构件之后对构件荷载-竖向变形以及承载力-掺入率、宏观变形特征的影响,从而达成对再生混合短柱的疲劳性的研究,根据当前钢管混凝土的三种理论计算公式,对其进行相关适用性的验证,并得出再生混合短柱的破坏形态相当于普通的钢管和由废弃混凝土混合而成的再生短柱的疲劳性能随着废弃混凝土的不断掺入而降低的验证结论。本文通过对由大尺度废弃混凝土再生混合短柱的相关试验进行对比分析,将不同角度的理论计算公式进行相应的分析与概述。
Through the regeneration of large-scale waste concrete and ordinary concrete mixing, and the fatigue test of hybrid short columns, the strength of ordinary concrete is lower than the concrete blocks mixed with low mass concrete after the load - vertical deformation and bearing capacity - Doping rate and macroscopic deformation, the research on the fatigue property of recycled mixed short columns is carried out. According to the three theoretical formulas of CFST, the validity of this method is verified, Is equal to the verification result that the fatigue performance of the ordinary steel pipe and the regenerated short column made of waste concrete is reduced with the continuous incorporation of waste concrete. In this paper, comparative analysis of the related experiments of the large-scale recycled concrete short columns of waste concrete is carried out, and the theoretical formulas of different angles are analyzed and summarized accordingly.