钢筋套筒挤压连接的预制RC柱非线性有限元分析

Non-linear analysis of precast RC column with steel bars spliced by compressive sleeves

  • 摘要: 通过套筒挤压连接纵向钢筋是装配式混凝土结构采用的一种新型钢筋连接技术。该文基于MSC.MARC有限元软件,模拟了低周反复荷载下2个不同参数的、钢筋套筒挤压连接的预制RC柱受力性能。仿真结果表明:数值模拟得到的滞回曲线、骨架曲线、破坏形态等,均与试验结果吻合较好;验证了预制RC柱有限元模型的正确性和套筒挤压连接模拟方法的有效性,为钢筋套筒挤压连接的装配式RC框架的抗震性能数值模拟打下基础。

     

    Abstract: The method of steel bars spliced by compressive sleeves is a new type of connection technology for prefabricated RC structures. The aseismic behavior under cyclic loading for two precast RC columns with steel bars spliced by compressive sleeves and different parameters were modeled by the software of MSC.MARC. The simulation results show that the hysteretic curves, skeleton curves, and failure patterns of columns match well with the experimental results. The results verify the correction of the finite element model for the precast columns and the validity of the simulation method, and a foundation for the aseismic performance simulation of prefabricated RC frames with compressive sleeve connection is put forward.

     

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