建筑结构学报2017，Vol.38Issue(10)：29-37,9.DOI:10.14006/j.jzjgxb.2017.10.004
钢管混凝土斜交框筒节点试验研究
Experimental study on intersecting connections used in CFT diagrid frame tube
甄伟 1杨庆山 2田春雨 1盛平 3陈涛2
作者信息
- 1. 北京交通大学土木建筑工程学院,北京100044
- 2. 北京市建筑设计研究院有限公司,北京100045
- 3. 中国建筑科学研究院,北京100013
- 折叠
摘要
Abstract
The intersecting connection of CFT diagrid frame tube connects members including inclined columns,ring beams and radial beams,etc.The construction and stress distribution are complicated.To improve the performance of such nodes,a new form of node is developed for such type of structure:transferring cylinder with reinforcing centralplate at core zone and connected to the inclined column by penetration welding junction.In order to verify the rationality of the connections and to investigate the performance,capacity,failure mechanism,and to assure that the capacity of connections can exceed that of structural members,six 1:5.5 scaled models were tested using a selfbalancing equipment with a 10 000 kN capacity loading frame.Two axial forces are applied at the end of inclined columns of diagrid nodes with 5 000 kN jacks.Test results indicate that node design conforms to the principle of 'strong node weak component'.Even if concrete at the node area is not poured densely,the node performance can also meet the design requirements,and the design method and construction detail are reliable.关键词
交叉网格框架/钢管混凝土柱/相贯节点/静力试验/受力性能Key words
diagrid outer tube/CFT column/intersecting connection/monotonic loading test/mechanical behavior分类
建筑与水利引用本文复制引用
甄伟,杨庆山,田春雨,盛平,陈涛..钢管混凝土斜交框筒节点试验研究[J].建筑结构学报,2017,38(10):29-37,9.
