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-connected box column mixed joints
潘秀珍 1张远 1杨一玮 1陈仕伟 2李慎1
作者信息
- 1. 西安理工大学土木建筑工程学院,710048西安
- 2. 苏文电能科技股份有限公司,213000常州
- 折叠
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(屮)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.
Abstract
Uses ABAQUS finite element software to analyze the nonlinear force performance of exposed rig-id-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 ac-cording to the relevant parameters researches:the upper steel column should be box-shaped or cross-sec-tion 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Key words
adding story hybrid structure/exposed rigid-connected/mixed joint/energy dissipation capaci-ty/seismic performance引用本文复制引用
基金项目
陕西省科技厅自然科学基础研究计划项目(2021JM-333)
陕西省科技厅自然科学基础研究计划项目(2021JM-330)
出版年
2024
NETL
NSTL
万方数据