露出式刚接箱型柱混合节点的抗震性能分析  

Study on seismic behavior of exposed rigid-connectedbox column mixed joints

作　　者：潘秀珍[1] 张远 杨一玮 陈仕伟 李慎[1] PAN Xiuzhen;ZHANG Yuan;YANG Yiwei;CHEN Shiwei;LI Shen(School of Civil Engineering and Architecture,Xi'an University of Technology,710048 Xi'an,China;Suwen Electric Energy Technology Co.Ltd.,213000 Changzhou,China)

机构地区：[1]西安理工大学土木建筑工程学院,西安710048 [2]苏文电能科技股份有限公司,常州213000

出　　处：《应用力学学报》2024年第4期833-842,共10页Chinese Journal of Applied Mechanics

基　　金：陕西省科技厅自然科学基础研究计划项目(No.2021JM-333,2021JM-330)。

摘　　要：运用ABAQUS有限元软件,分析了用于RC框架-钢结构加层混合结构的露出式刚接箱型柱节点的非线性受力性能,并在验证有限元模型正确性的基础上,深入研究了相关参数对露出式刚接节点抗震性能的影响规律,并提出设计建议。结果表明:露出式刚接箱型柱混合节点为梁塑性铰破坏,具有较强的耗能能力和塑性变形能力,但刚度退化较为严重;根据相关参数研究提出合理的设计建议,上部钢柱应尽可能采用平面内、平面外等稳定性的箱型或■字形截面柱;就论文所研究的试件来看,轴压比控制在0.16~0.40之间比较合理。Uses ABAQUS finite element software to analyze the nonlinear force performance of exposed rigid-connected box column joints for RC frame-steel structure adding story hybrid structure.On the basis of verifying the correctness of the finite element model,the influence of relevant parameters on the seismic performance of exposed rigid-connected box column joints is conducted in depth,and design suggestions are put forward.The results show that the exposed rigid-connected box column mixed joint is damaged by the plastic hinge failure of the beam,which has strong energy dissipation capacity and plastic deformation capacity,but the stiffness degradation is more serious.Reasonable design suggestions are put forward according to the relevant parameters researches:the upper steel column should be box-shaped or cross-section columns with in-plane and out-of-plane stability as much as possible.In the view of the specimens studied in the paper,it is reasonable to control the axial compression ratio between 0.16 and 0.40.

关 键 词：加层混合结构 露出式刚接 混合节点 耗能能力 抗震性能 

分 类 号：TU391[建筑科学—结构工程]