十字形RC柱的抗震性能数值分析
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TU375.5

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国家自然科学基金项目(51578120), 东北石油大学研究生创新科研项目(YJSCX2017-025NEPU)


Numerical Analysis of Seismic Performance for Cross-Shaped Section RC Columns
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    摘要:

    为了给该类柱的抗震设计提供依据,通过ABAQUS建立模型并验证了模型正确性,说明该模型能较好的描述试件的受力性能。研究了十字形RC柱抗震性能与轴压比及配筋率的关系。结果表明:随着配筋率的增大,峰值荷载越大,耗能能力以及延性性能更优越,刚度退化得到延缓;随着轴压比的减小,虽然峰值荷载降低,但其耗能能力和延性性能更优越,刚度退化得到延缓。可见在允许范围内减小轴压比或增大配筋率,可以提高试件的抗震性能。

    Abstract:

    In order to provide the basis for the seismic design of this kind of column, the model was established by ABAQUS and the correctness of the model was verified. The relationship between seismic performance, axial compression ratio and reinforcement ratio of cross - shaped RC(reinforced concrete) column is studied. The results show that with the increase of the reinforcement ratio, the peak load is larger, the energy dissipation capacity and ductility are better, and the stiffness degradation is delayed. With the decrease of axial compression ratio, although the peak load decreases, its energy dissipation capacity and ductility performance are better, and the stiffness degradation is delayed. It can be seen that reducing the axial compression ratio or increasing the reinforcement ratio within the allowable range can improve the seismic performance of the specimens.

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滕振超,赵誉翔,刘宇,等. 十字形RC柱的抗震性能数值分析[J]. 科学技术与工程, 2020, 20(16): 6554-6559.
Teng Zhenchao, Zhao Yuxiang, Liu Yu, et al. Numerical Analysis of Seismic Performance for Cross-Shaped Section RC Columns[J]. Science Technology and Engineering,2020,20(16):6554-6559.

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历史
  • 收稿日期:2019-07-26
  • 最后修改日期:2020-06-15
  • 录用日期:2019-10-09
  • 在线发布日期: 2020-06-29
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