[1]郑宝锋,吴步宸,张 奎,等.不锈钢圆管T形、Y形相贯节点支管受拉承载力研究[J].西安建筑科技大学学报(自然科学版),2022,54(04):508-516.[doi:10.15986/j.1006-7930.2022.04.005]
　ZHENG Baofeng,WU Buchen,ZHANG Kui,et al.Investigations on capacity of stainless steel T-and Y-joints in circular hollow sections with axial tension in brace[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(04):508-516.[doi:10.15986/j.1006-7930.2022.04.005]
点击复制

不锈钢圆管T形、Y形相贯节点支管受拉承载力研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
54
期数:
2022年04期
页码:
508-516
栏目:
出版日期:
2022-08-28

文章信息/Info

Title:
Investigations on capacity of stainless steel T-and Y-joints in circular hollow sections with axial tension in brace
文章编号:
1006-7930(2022)04-0508-09
作者:
郑宝锋1; 2; 吴步宸2; 张 奎3; 王嘉昌2; 舒赣平1; 2; 蒋庆林4
(1.东南大学 混凝土及预应力混凝土结构教育部重点实验室,江苏 南京 210096; 2.东南大学 土木工程学院,江苏 南京 210096; 3.中国建筑西北设计研究院有限公司,陕西 西安 710018; 4.江苏东阁不锈钢制品有限公司,江苏 盐城 224000)
Author(s):
ZHENG Baofeng1; 2; WU Buchen2; ZHANG Kui3; WANG Jiachang2; SHU Ganping1; 2; JIANG Qinglin4
(1.Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China; 2.School of Civil Engineering,Southeast University,Nanjing 210096,China; 3.China Northwest Building Design & Research Institute Co.,Ltd,Xi'an 710018,China; 4.Jiangsu Dongge Stainless Steel Ware Co.,Ltd.,Jiangsu Yancheng 224000,China)
关键词:
不锈钢;  圆管;  T形节点;  Y形节点;  试验研究;  有限元分析;  设计方法
Keywords:
stainless steel;  circular hollow sections;  T-joints;  Y-joints;  test;  finite element analysis;  design
分类号:
TU391
DOI:
10.15986/j.1006-7930.2022.04.005
文献标志码:
A
摘要:
随着不锈钢结构的广泛应用,不锈钢相贯节点越来越多地用于建筑结构中.然而,不锈钢圆管相贯节点的性能和设计方法却鲜有研究.考虑几何因素和弦杆预加载荷对节点承载力的影响,共对6个T形和3个Y形不锈钢圆管相贯节点,进行了支管受拉承载力试验研究.获得了材料性能、破坏模式、节点承载力和载荷-变形曲线.试验结果表明:T形、Y形节点的破坏模式相似,均为节点域弦杆的塑性变形.基于试验结果建立了节点有限元分析模型,经试验验证后进行了参数化分析,以研究支管受力状态对节点承载力的影响.数值分析结果表明:不锈钢圆管T形、Y形相贯节点支管受拉承载力始终大于支管受压承载力.基于国内外设计规范中支管受拉与支管受压T形相贯节点采用相同设计公式的背景,采用文献[15]提出的不锈钢圆管T形和Y形支管受压相贯节点承载力设计公式预测节点承载力,并与CIDECT计算结果对比.结果表明:CIDECT计算结果是偏保守的,文献[15]提出的公式具有良好的准确性.
Abstract:
With the widespread application of stainless steel structures, stainless steel hollow section joints in cold-rolled tubes are increasingly used in building structures. However, the performance and design methods of stainless steel circular tubular joints are rarely studied. A total of six T-joints and three Y-joints were tested considering the effect of the geometric configurations and the preload in the chord on the behaviors of the joint. The material properties, failure modes, joint strengths and load-deformation curves were all reported. The test results showed that the failure mode of T-joints, as well as Y-joints, was the plastic deformation of the chord at the panel zone. Based on the test results, the finite element analysis model of the joint was established, and the parametric analysis was carried out to study the effect of brace load on the joint strength. The results showed that the capacity of stainless steel T- and Y-joints in circular hollow sections with brace under axial tension was always greater than that of those with brace under axial compression. According to the background of using the same design formula for both the braces under axial tension and compression in the specifications at home and abroad, the capacity of the stainless steel T- and Y-joints in circular hollow sections was finally calculated by using the formula proposed in Ref[12] and compared with predictions using the CIDECT recommendations. The results showed that the CIDECT's predictions were conservative and the formula proposed in Ref[12] had good accuracy.

参考文献/References:

[1]王元清,常婷,石永久.循环荷载下奥氏体不锈钢的本构关系试验研究[J].东南大学学报(自然科学版),2012,42(6): 1175-1179.
WANG Yuanqing, CHANG Ting,SHI Yongjiu.Experimental study on constitutive relationship in austenitic stainless steel under cyclic loading[J].Journal of Southeast University(Natural Science Edition),2012,42(6): 1175-1179
[2]王萌,杨维国,王元清,等.奥氏体不锈钢滞回本构模型研究[J].工程力学,2015,32(11): 107-114.
WANG Meng,YANG Weiguo,WANG Yuanqing,et al.Study on hysteretic constitutive model of austenitic stainless steel[J].Engineering Mechanics,2015,32(11): 107-114.
[3]常笑,杨璐,王萌,等.循环荷载下奥氏体型和双相型不锈钢材料本构关系研究[J].工程力学,2019,36(5): 137-147.
CHANG Xiao,YANG Lu,WANG Meng,et al.Study on constitutive model of austenitic stainless steel and duplex stainless steel under cyclic loading[J].Engineering Mechanics,2019,36(5): 137-147.
[4]舒赣平,郑宝锋,沈晓明.冷成型不锈钢管轴心受压柱试验研究[J].建筑结构学报,2013,34(5): 87-95.
SHU Ganping,ZHENG Baofeng,SHEN Xiaoming.Experimental study on cold-formed stainless steel tubular columns subjected to axial loading[J].Journal of Building Structures,2013,34(5): 87-95.
[5]舒赣平,郑宝锋,范圣刚,等.不锈钢轴心受压柱弯曲屈曲承载力分析[J].建筑结构学报,2013,34(11): 116-122.
SHU Ganping,ZHENG Baofeng FAN Shenggang,et al.Study on flexural stability of stainless steel columns under axial loading[J].Journal of Building Structures,2013,34(11): 116-122.
[6]袁焕鑫,王元清,杜新喜,等.不锈钢焊接工字形截面短柱轴压局部稳定性能试验研究[J].建筑结构学报,2015,36(5): 38-45.
YUAN Huanxin,WANG Yuanqing,DU Xinxi,et al.Compression tests on local buckling behavior of welded stainless steel I-section stub columns[J]. Journal of Building Structures,2015,36(5): 38-45.
[7]RASMUSSEN K J R,YOUNG B.Tests of X- and K-joints in SHS stainless steel tubes[J].Journal of Structural Engineering,ASCE 2001; 127(10): 1173-82.
[8]RASMUSSEN K J R,HASHAM A S.Tests of X- and K-joints in CHS stainless steel tubes[J].Journal of Structural Engineering, ASCE 2001; 127(10): 1183-9.
[9]WARDENIER J, KUROBANE Y, PACKER J A, et al. Design guide for circular hollow section(CHS)joints under predominantly static loading[A]. Comité International pour le Développement et l'Etude de la Construction Tubulaire(CIDECT). Cologne, Germany: Verlag TüV Rheinland; 1991.
[10]FENG R,YOUNG B.Experimental investigation of cold-formed stainless steel tubular T-joints[J].Thin-Walled Structures 2008; 46(10): 1129-1142.
[11]FENG R,YOUNG B.Design of cold-formed stainless steel tubular T- and X-joints[J].Journal of Constructional Steel Research,2011; 67(3): 421-36.
[12]FENG R,YOUNG B.Design of cold-formed stainless steel tubular joints at elevated temperatures[J].Eng- Struct 2012; 35(1): 188-202.
[13]ZHENG B F,ZHANG K,WANG J C,et al.Test and design of stainless steel K-joints in cold-formed circular hollow sections[J].Journal of Constructional Steel Research,2021,177: 106447.
[14]WARDENIER J, KUROBANE Y, PACKER J A, et al. Design guide for circular hollow section(CHS)joints under predominantly static loading[A]. Comité International pour le Développement et l'Etude de la Construction Tubulaire(CIDECT). Cologne, Germany: Verlag TüV Rheinland; 2008.
[15]WANG J C,ZHANG K,WANG J C,et al.Investigations on stainless steel T- and Y-joints in cold-rolled circular hollow sections[J].Journal of Constructional Steel Research,2021; 177: 106462.
[16]ZHENG B F, WU B C,WANG J C,et al.Design of stainless steel gapped K-joints in cold-formed square hollow sections[J].Journal of Constructional Steel Research,2022; 190: 107105.
[17]FENG R,YOUNG B.Tests and behaviour of cold-formed stainless steel tubular X-joints[J].Thin-Walled Structures,2010; 48(12): 921-34.
[18]LAN X,HUANG Y.Structural design of cold-formed stainless steel tubular X- and T-joints at elevated temperatures[J].Thin-Walled Structures,2016,108: 270-279.
[19]张哲文.不锈钢T型相贯节点疲劳性能研究[D].合肥:合肥工业大学,2021.
ZHANG Zhewen.Research on fatigue behaviour of stainless steel welded tubular T-joints[D].Hefei: Hefei University of Technology, 2021.
[20]中国国家标准化管理委员会.金属材料拉伸试验 第一部分-室温试验方法: GB/T 228.1—2010[S].北京,中国计划出版社,2010.
Standardization Administration of the People's Republic of China. Metallic materials-Tensile testing at ambient temperature: GB/T 228.1—2010[S].Beijing: China Planning Press,2010.
[21]GARDNER L,NETHERCOT D A.Experiments on stainless steel hollow sections-Part 1: Material and cross-sectional behaviour[J].Journal of Constructional Steel Research.2004,60(9): 1291-1318.
[22]G.J.Van der Vegte.The static strength of uniplanar and multiplanar tubular T-and X-joints[D].Turkey, Delft:Delft University of Technology,1995.

备注/Memo

备注/Memo:
收稿日期:2022-05-01修改稿日期:2022-08-08
基金项目:国家自然科学基金项目(51808110)
第一作者:郑宝锋(1984—), 男, 博士, 副教授,主要研究方向:不锈钢结构设计理论研究.E-mail:101012279@seu.edu.cn
更新日期/Last Update: 2022-08-28