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结合低周反复荷载作用下型钢再生混凝土柱抗震性能试验,在已有的再生混凝土本构关系模型和结构非线性分析理论的基础上,采用ABAQUS有限元软件对型钢再生混凝土柱在水平荷载作用下的受力性能进行了非线性分析,获取了型钢再生混凝土柱应力分布云图和荷载-位移骨架曲线,研究了型钢再生混凝土柱的应力分布规律,主要分析了再生粗骨料取代率、轴压比、体积配箍率对型钢再生混凝土柱受力性能的影响。研究结果表明,再生粗骨料取代率对型钢再生混凝土柱的承载力及延性变形影响较小;随着轴压比的增大,型钢再生混凝土柱的延性变形降低幅度较大;提高体积配箍率对该柱的受力性能是有利的,合理设计的型钢再生混凝土柱可应用于实际工程中。
Based on the existing constitutive model and structural nonlinear analysis theory of recycled concrete under the action of low cycle and repeated loading, the ABAQUS finite element software is used to analyze the seismic behavior of recycled concrete columns under horizontal load The stress distribution and load-displacement skeleton curves of SRC columns were obtained. The stress distribution rules of SRC columns were studied. The effects of replacement ratio of recycled coarse aggregate, axial compression ratio , And the effect of volumetric stirrup ratio on the mechanical properties of steel reinforced concrete columns. The results show that the replacement rate of recycled coarse aggregate has little effect on the bearing capacity and ductility deformation of SRC columns. With the increase of axial compression ratio, the ductility of SRC columns decreases greatly. The rate of the column of the force performance is favorable, a rational design of steel recycled concrete columns can be applied to the actual project.