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为进一步研究型钢自密实混凝土(SCC)叠合剪力墙的抗震性能,在已有试验研究基础上,采用MSC.MARC软件中的分层壳单元建立型钢SCC叠合剪力墙有限元模型,并采用该模型进行低周往复加载数值模拟.在此基础上,分析了暗柱型钢含钢率、叠合区锚固钢筋配筋率及轴压比对型钢SCC叠合剪力墙承载力和延性的影响.分析结果表明:采用该有限元模型计算得到的模拟结果与已有试验结果吻合较好,该方法可为叠合剪力墙结构体系抗震性能的数值模拟分析提供参考;随着暗柱型钢含钢率或叠合区锚固钢筋配筋率的增加,墙体承载力逐渐提高,但延性逐渐降低;型钢SCC叠合剪力墙在大震作用下的轴压比不应大于0.3.
In order to further study the seismic behavior of the self-compacting steel (SCC) shear wall, based on the existing experimental studies, the finite element model of the SCC superimposed shear wall was established by using layered shell elements in the MSC.MARC software. And the numerical simulation of low-cycle reciprocating loading is carried out.On this basis, the bearing capacity and ductility of the SCC superposed shear wall of the profile steel are analyzed, including the steel content of the dark column steel, the ratio of reinforcement steel anchored by the overlap zone and the axial compression ratio The results show that the simulation results obtained by this finite element model are in good agreement with the existing experimental results. This method can provide reference for the numerical simulation of the seismic performance of the superposed shear wall structural system. The steel ratio of steel section or the ratio of reinforcement ratio of the anchorage steel in the overlap area increased gradually, but the bearing capacity of the wall gradually increased, but the ductility decreased gradually; the axial compression ratio of the steel SCC composite shear wall under the action of large earthquake should not exceed 0.3.