L形包角环口板加强方钢管T形节点轴向滞回性能研究

为研究L形包角环口板加强方钢管T形节点（LCPT）轴向滞回性能，对一组包角环口板加强T形节点进行轴向往复加载试验，并与未加强（URT）和覆板加强节点（DPT）进行对比。结果表明：包角环口板加强节点的轴向滞回性能较优，LCPT试件比URT试件的最大荷载可提高103.2%；LCPT试件比DPT试件的累积耗能能力更好，且LCPT试件比DPT试件的拉压对等性更好。进一步对包角环口板尺寸和屈服强度进行有限元参数分析，结果表明：包角环口板厚度是影响LCPT节点轴向滞回性能的关键几何参数，提高包角环口板屈服强度可提高节点承载力，但对节点耗能能力几乎无影响。最后，对比覆板、环口板、包角环口板三种方钢管加强节点...

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Published inJianzhu Gangjiegou Jinzhan Vol. 25; pp. 14 - 22
Main Authors 常鸿飞, 张睿, 宋心怡, 李照伟, 夹硕勋, 戴晨圆
Format Journal Article
LanguageChinese
Published Editorial Department of Progress in Steel Building Structures, Tongji University 01.02.2023
Subjects
L形包角环口板加强节点
数值模拟
方钢管T形节点
试验研究
轴向滞回性能
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Abstract 为研究L形包角环口板加强方钢管T形节点（LCPT）轴向滞回性能，对一组包角环口板加强T形节点进行轴向往复加载试验，并与未加强（URT）和覆板加强节点（DPT）进行对比。结果表明：包角环口板加强节点的轴向滞回性能较优，LCPT试件比URT试件的最大荷载可提高103.2%；LCPT试件比DPT试件的累积耗能能力更好，且LCPT试件比DPT试件的拉压对等性更好。进一步对包角环口板尺寸和屈服强度进行有限元参数分析，结果表明：包角环口板厚度是影响LCPT节点轴向滞回性能的关键几何参数，提高包角环口板屈服强度可提高节点承载力，但对节点耗能能力几乎无影响。最后，对比覆板、环口板、包角环口板三种方钢管加强节点的承载和耗能机理，包角环口板加强节点的轴向滞回性能更优。
AbstractList 为研究L形包角环口板加强方钢管T形节点（LCPT）轴向滞回性能，对一组包角环口板加强T形节点进行轴向往复加载试验，并与未加强（URT）和覆板加强节点（DPT）进行对比。结果表明：包角环口板加强节点的轴向滞回性能较优，LCPT试件比URT试件的最大荷载可提高103.2%；LCPT试件比DPT试件的累积耗能能力更好，且LCPT试件比DPT试件的拉压对等性更好。进一步对包角环口板尺寸和屈服强度进行有限元参数分析，结果表明：包角环口板厚度是影响LCPT节点轴向滞回性能的关键几何参数，提高包角环口板屈服强度可提高节点承载力，但对节点耗能能力几乎无影响。最后，对比覆板、环口板、包角环口板三种方钢管加强节点的承载和耗能机理，包角环口板加强节点的轴向滞回性能更优。
Author 常鸿飞
夹硕勋
宋心怡
张睿
李照伟
戴晨圆
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SubjectTerms L形包角环口板加强节点
数值模拟
方钢管T形节点
试验研究
轴向滞回性能
Title L形包角环口板加强方钢管T形节点轴向滞回性能研究
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