| 箱形节点域外伸端板弱轴连接的滞回性能研究 |
| |
| 引用本文： | 卢林枫,钟丽丽,胡本峰,林建军.箱形节点域外伸端板弱轴连接的滞回性能研究[J].建筑科学与工程学报,2017,0(4):48-56. |
| |
| 作者姓名： | 卢林枫 钟丽丽 胡本峰 林建军 |
| |
| 作者单位： | 长安大学建筑工程学院 |
| |
| 摘 要： | 提出了一种适用于H形柱的箱形节点域外伸端板弱轴连接，利用有限元软件ABAQUS对8个不同构造形式的端板连接进行了研究，分析了节点的破坏形式、弯矩 转角滞回曲线、承载能力及转动能力等。结果表明:8个不同构造形式的端板连接均为半刚性节点；在循环荷载作用下，箱形节点域端板连接节点的破坏均出现在端板上，而柱子节点域基本完好；当层间位移角为0.04 rad时，各节点的承载力均大于0.8倍钢梁全截面塑性弯矩；端板外伸加劲肋的设置使节点的极限承载力提高10%左右，但耗能能力却下降了4%，建议外伸端板不另设加劲肋；端板厚度为16 mm，即与蒙皮板厚度相差较小时，节点的承载能力、耗能能力较好；提升端板材性能提高节点承载能力，但端板材性提升过大反而会降低节点耗能能力，建议端板材性只提高1个等级。
|
| 关 键 词： | 箱形节点域 弱轴端板连接 半刚性节点 滞回性能 |
Research on Hysteretic Performance for Box Node Domain Extended End-plate Weak-axis Connection |
| |
| LU Lin-feng,ZHONG Li-li,HU Ben-feng,LIN Jian-jun.Research on Hysteretic Performance for Box Node Domain Extended End-plate Weak-axis Connection[J].Journal of Architecture and Civil Engineering,2017,0(4):48-56. |
| |
| Authors: | LU Lin-feng ZHONG Li-li HU Ben-feng LIN Jian-jun |
| |
| Affiliation: | School of Civil Engineering, Chang’an University |
| |
| Abstract: | A new box node domain extended end plate weak axis connection suitable for H-section connection was put forward, eight different models of the end-plate connection were studied by finite element software ABAQUS. The failure mode of node, the moment-rotation curve, ultimate bearing capacity and energy dissipation capacity were analyzed. The results show that the eight models are semi-rigid nodes; under cyclic loading, the failures of the box node domain end plate connections are present in the end-plate, and the column is substantially in elastic state; when the story drift angle is 0.04 rad, the respective bearing capacities of the nodes are higher than 0.8 times of whole section plastic moment; although the ultimate bearing capacity of the end plate with extended stiffener has increased about 10%, the energy dissipation capacity has decreased 4%, so extended end plate stiffener is not provided; when the end-plate thickness is 16 mm, that is, the thickness difference between the end-plate and the skin plate is small, the bearing capacity and energy dissipation capacity of nodes are better; enhancing the properties of end plate can improve the load carrying capacity, but the node energy dissipation capacity will reduce if end-plate properties are increased too more, so it is recommended that the properties of end-plate are increased only one grade. |
| |
| Keywords: | box node domain weak axis end-plate connection semi-rigid node hysteretic performance |
|
| 点击此处可从《建筑科学与工程学报》浏览原始摘要信息 |
|
点击此处可从《建筑科学与工程学报》下载全文 |
|
