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采用ABAQUS有限元软件,对型钢再生混凝土框架-再生砌块填充墙结构抗震性能进行非线性分析,并与试验结果相对比,验证了所建模型的合理性。进而对该结构进行参数分析,研究了再生混凝土抗压强度、框架柱型钢屈服强度、轴压比、墙体砌块强度以及墙体宽高比等参数对结构力学性能的影响。分析结果表明:增大再生混凝土抗压强度和框架柱型钢屈服强度,可以提高结构水平承载力,但对弹性刚度和延性性能影响不明显;随轴压比的增大,结构水平承载力呈现先升高后降低的趋势,弹性刚度变化不大,结构延性下降明显;提高结构墙体砌块强度以及墙体宽高比,可以显著提高结构水平承载力和弹性刚度,同时降低结构的延性。
The ABAQUS finite element software is used to analyze the seismic performance of reinforced concrete frame-regenerated block infilled walls. Compared with the experimental results, the proposed model is validated. Then the parameters of the structure are analyzed. The influences of compressive strength of recycled concrete, the yield strength of frame column steel, axial compression ratio, wall block strength and wall aspect ratio on the mechanical properties are studied. The results show that increasing the compressive strength of recycled concrete and the yield strength of frame column steel can improve the horizontal bearing capacity but have no obvious effect on the elastic stiffness and ductility. With the increase of axial compression ratio, the horizontal bearing capacity of structure After increasing, the elastic stiffness changes little and the ductility of the structure decreases obviously. Increasing the strength of the block wall and the aspect ratio of the wall can significantly increase the horizontal bearing capacity and the elastic stiffness of the structure and reduce the ductility of the structure.