|本期目录/Table of Contents|

[1]刘永健,周绪红,刘君平.矩形钢管混凝土K型节点受力性能试验[J].建筑科学与工程学报,2007,24(02):36-42.
 LIU Yong-jian,ZHOU Xu-hong,LIU Jun-ping.Experiment on Force Performance of Concrete-filled Rectangular Steel Tube K-joints[J].Journal of Architecture and Civil Engineering,2007,24(02):36-42.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
24卷
期数:
2007年02期
页码:
36-42
栏目:
出版日期:
2007-06-20

文章信息/Info

Title:
Experiment on Force Performance of Concrete-filled Rectangular Steel Tube K-joints
作者:
刘永健1,周绪红2,刘君平1
1. 长安大学 公路学院,陕西 西安 710064; 2. 兰州大学 土木工程与力学学院,甘肃 兰州 730000
Author(s):
LIU Yong-jian1, ZHOU Xu-hong2, LIU Jun-ping1
1. School of Highway, Chang’an University, Xi’an 710064, Shaanxi, China; 2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, Gansu, China
关键词:
矩形钢管混凝土 K型节点 破坏模式 节点间隙 受力性能 屈服线破坏
Keywords:
concrete-filled rectangular steel tube K-joint failure mode joint gap force performance yield-line failure
分类号:
TU392.3
DOI:
-
文献标志码:
A
摘要:
对6个矩形钢管混凝土K型节点和1 个矩形钢管K型节点进行了受力性能试验研究,结合Packer试验结果,对矩形钢管混凝土K型节点的破坏模式及节点间隙对节点性能的影响进行了分析,并和矩形钢管节点进行对比,推导了K型节点与Y型节点的判别式。试验结果表明:矩形钢管混凝土K型节点没有发生屈服线破坏模式,节点极限承载力得到了有效的提高; 受拉支管破坏模式与矩形钢管节点相似,为冲剪破坏和有效宽度破坏; 在满足受压支管承载力的前提下,受压支管为横向局部承压破坏模式; 当受压支管宽厚比较大时,可不考虑节点间隙对节点承载力的影响; 当受压支管宽厚比较小、节点间隙较大时,需考虑节点间隙对节点极限承载力的影响。
Abstract:
The force performance tests of 6 specimens of concrete-filled rectangular steel tube(CFRST)K-joints and 1 specimen of hollow rectangular steel tube(HRST)K-joints were carried out, compared with Packer’s experimental results, the failure mode of CFRST K-joints and influences on joints performance of joint gap were analyzed contrasting with HRST joints results. The method to differentiate K-joint or Y-joint of CFRST was provided. The experimental results show that yield-line failure mode of CFRST K-joints is not found, and the ultimate bearing capacity of CFRST joints are improved. Like the HRST joints, the failure mode of tension branch is punching failure mode or the effective width failure mode. If the bearing capacity of compressive branch is enough, the failure mode of compressive branch is local transverse compression failure mode of chord. When the ratio of width and thickness of CFRST K-joints is large, the influences of joint gap for bearing capacity can be ignored, while the ratio of width and thickness is small and joint gap is large, the influences of joint gap on K-joints ultimate bearing capacity should be considered.

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备注/Memo

备注/Memo:
收稿日期:2007-04-23
基金项目:国家西部交通建设科技项目(2006 319 812 112); 交通部应用基础研究项目(2006 319 812 130); 湖南省建设科技项目(2005-25)
作者简介:刘永健(1966-),男,江西婺源人,教授,博士生导师,工学博士,E-mail:steellyj@126.com。
更新日期/Last Update: 2007-06-20