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[1]刘永健,王文帅,马印平,等.矩形钢管和矩形钢管混凝土T形不等宽受拉节点 轴向刚度[J].建筑科学与工程学报,2020,37(01):1-13.[doi:10.19815/j.jace.2019.11073]
 LIU Yong-jian,WANG Wen-shuai,MA Yin-ping,et al.Axial Stiffness of RHS and CFRHS T-joints with Unequal Width Subjected to Tension[J].Journal of Architecture and Civil Engineering,2020,37(01):1-13.[doi:10.19815/j.jace.2019.11073]
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矩形钢管和矩形钢管混凝土T形不等宽受拉节点 轴向刚度(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
37卷
期数:
2020年01期
页码:
1-13
栏目:
出版日期:
2020-01-13

文章信息/Info

Title:
Axial Stiffness of RHS and CFRHS T-joints with Unequal Width Subjected to Tension
文章编号:
1673-2049(2020)01-0001-13
作者:
刘永健王文帅马印平姜 磊龙 辛
(长安大学 公路学院,陕西 西安 710064)
Author(s):
LIU Yong-jian WANG Wen-shuai MA Yin-ping JIANG Lei LONG Xin
(School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China)
关键词:
矩形钢管节点 矩形钢管混凝土节点 节点轴向刚度 简化计算模型
Keywords:
rectangular hollow section joint concrete-filled rectangular hollow section joint joint axial stiffness simplified calculation model
分类号:
TU311
DOI:
10.19815/j.jace.2019.11073
文献标志码:
A
摘要:
为获得T形节点轴向刚度简化计算公式,根据节点受力特点,提出了适用于矩形钢管节点的平面框架模型和适用于矩形钢管混凝土节点的固端梁模型,并推导得到了2类节点的节点轴向刚度理论公式; 运用有限元方法对节点轴向刚度理论公式中的节点域有效长度leff进行参数分析,拟合得到leff简化计算公式; 将节点轴向刚度理论公式与试验及有限元结果进行了对比,并分析了主管内填混凝土对节点轴向刚度的影响。结果表明:主管高宽比和主管宽厚比对leff的影响较小,不予考虑; leff与主管宽度和支管高宽比均呈线性关系,且随之增大而增大; leff与支主管宽度比β呈非线性关系,且随之增大而减小; 2类节点的轴向刚度理论公式计算结果与试验结果及有限元结果均吻合较好; 主管内填混凝土可以提高节点轴向刚度,提高系数kc/h随着主管高宽比的增大而增大,随着β的增大呈现先增大后减小的规律,且当β=0.6~0.7时提高最大。
Abstract:
In order to obtain the simplified calculation formula of the axial stiffness of the T-joint, a plane frame calculation model suitable for the rectangular hollow section(RHS)joints and a fixed end beam model for concrete-filled rectangular hollow section(CFRHS)joints were proposed according to the characteristics of the joint force. Then the theoretical formula of the joint axial stiffness of the two joints types was derived. The finite element method was used to analyze the joint domain effective length leff in joint axial stiffness formula, and the simplified formula of leff was obtained by fitting. The theoretical formula of the joint axial stiffness was compared to the experimental and finite element model(FEM)results, then the influence of the concrete filled in the chord on the joint axial stiffness was analyzed. The results show that heigh-width ratio and width-to-thickness ratio of chord have little effect on leff and can be neglected. leff has a linear relationship with width of chord and height-width ratio of brace, and increases with them. The effective length leff has a nonlinear relationship with width ratio of brace and chord β, and decreases when β increases. The axial stiffness calculation formula of the two joints types agree well with the experimental and FEM results. The concrete filled in the chord can increase the joint axial stiffness, and the increase coefficient kc/h increases with the increase of height-width ratio of chord. Moreover, kc/h increases first and then decreases with the increase of β, and the maximum value occurs when β=0.6-0.7.

参考文献/References:

[1] WARDENIER J,PACKER J A,ZHAO X L,et al.Hollow Sections in Structural Applications[M].Zoetermeer:Bouwen Met Staal,2010.
[2]PACKER J A,WARDENIER J,ZHAO X L,et al.Design Guide for Rectangular Hollow Section(RHS)Joints Under Predominantly Static Loading[M].Cologne:Verlag Tuvrheinland Press,2009.
[3]BAUER D,REDWOOD R G.Triangular Truss Joints Using Rectangular Tubes[J].Journal of Structural Engineering,1988,114(2):408-424.
[4]刘永健,姜 磊,王康宁.焊接管节点疲劳研究综述[J].建筑科学与工程学报,2017,34(5):1-20.
LIU Yong-jian,JIANG Lei,WANG Kang-ning.Review of Fatigue Behavior in Welded Tubular Joints[J].Journal of Architecture and Civil Engineering,2017,34(5):1-20.
[5]姜 磊,刘永健,王康宁.焊接管节点结构形式发展及疲劳性能对比[J].建筑结构学报,2019,40(3):180-191.
JIANG Lei,LIU Yong-jian,WANG Kang-ning.Development of Welded Tubular Joints and Comparison of Fatigue Behaviour[J].Journal of Building Structures,2019,40(3):180-191.
[6]高诣民,刘永健,周绪红,等.高性能钢管混凝土组合桁梁桥[J].中国公路学报,2018,31(12):174-187.
GAO Yi-min,LIU Yong-jian,ZHOU Xu-hong,et al.High-performance CFST Composite Truss Bridge[J].China Journal of Highway and Transport,2018,31(12):174-187.
[7]刘永健,马印平,田智娟,等.矩形钢管混凝土组合桁梁连续刚构桥实桥试验[J].中国公路学报,2018,31(5):53-62.
LIU Yong-jian,MA Yin-ping,TIAN Zhi-juan,et al.Field Test of Rectangular Concrete Filled Steel Tubular Composite Truss Bridge with Continuous Rigid System[J].China Journal of Highway and Transport,2018,31(5):53-62.
[8]刘 彬,刘永健,周绪红,等.中等跨径装配式矩形钢管混凝土组合桁梁桥设计[J].交通运输工程学报,2017,17(4):20-31.
LIU Bin,LIU Yong-jian,ZHOU Xu-hong,et al.Design of Mid-span Fabricated RCFST Composite Truss Bridge[J].Journal of Traffic and Transportation Engineering,2017,17(4):20-31.
[9]刘永健,王康宁,刘 彬,等.矩形钢管混凝土组合桁梁负弯矩区受力性能试验研究[J].建筑结构学报,2019,40(9):74-83.
LIU Yong-jian,WANG Kang-ning,LIU Bin,et al.Experimental Research on Mechanical Behavior of RCFST Composite Truss Beam Under Negative Bending[J].Journal of Building Structures,2019,40(9):74-83.
[10]马印平,刘永健,刘 江.基于响应面法的钢管混凝土组合桁梁桥多尺度有限元模型修正[J].中国公路学报,2019,32(11):51-61.
MA Yin-ping,LIU Yong-jian,LIU Jiang.Multi-scale Finite Element Model Updating of CFST Composite Truss Bridge Based on Response Surface Method[J].China Journal of Highway and Transport,2019,32(11):51-61.
[11]周绪红,刘永健,姜 磊,等.PBL加劲型矩形钢管混凝土结构力学性能研究综述[J].中国公路学报,2017,30(11):45-62.
ZHOU Xu-hong,LIU Yong-jian,JIANG Lei,et al.Review on Mechanical Behavior Research of Concrete Filled Rectangular Hollow Section Tube Stiffened with PBL[J].China Journal of Highway and Transport,2017,30(11):45-62.
[12]ZOETEMEIJER P.A Design Method for the Tension Side of Statically Loaded,Bolted Beam-to-column Connections[J].Heron,1974,20(1):1-59.
[13]WEYNAND K,JASPART J P.Extension of the Component Method to Joints in Tubular Construction[C]//PUTHLI R,HERION S.Tubular Structures IX:Proceedings of the 9th International Symposium on Tubular Structures.Leiden:Balkema A A,2001:517-523.
[14]GARIFULLIN M,BRONZOVA M,PAJUNEN S,et al.Initial Axial Stiffness of Welded RHS T Joints[J].Journal of Constructional Steel Research,2019,153:459-472.
[15]王 伟,陈以一.圆钢管相贯节点局部刚度的参数公式[J].同济大学学报:自然科学版,2003,31(5):515-519.
WANG Wei,CHEN Yi-yi.Parametric Formulas for Local Rigidity of Unstiffened Tubular Joints[J].Journal of Tongji University:Natural Science,2003,31(5):515-519.
[16]邱国志.圆钢管X型相贯节点刚度及其对结构整体性能的影响[D].上海:上海交通大学,2008.
QIU Guo-zhi.Rigidity of Unstiffened Circular Tubular X-joints and Its Effects on Global Performance of Steel Tubular Structures[D].Shanghai:Shanghai Jiaotong University,2008.
[17]赵必大,刘成清,章圣冶,等.Y型圆钢管相贯节点轴向刚度计算模型[J].西南交通大学学报,2015,50(5):872-878.
ZHAO Bi-da,LIU Cheng-qing,ZHANG Sheng-ye,et al.Calculation Model for Axial Rigidity of CHS Y-type Joints[J].Journal of Southwest Jiaotong University,2015,50(5):872-878.
[18]武振宇,谭慧光,张耀春.不等宽T型方钢管节点的刚度计算[J].哈尔滨建筑大学学报,2002,35(5):13-16,27.
WU Zhen-yu,TAN Hui-guang,ZHANG Yao-chun.Stiffiness of Stepped T-type RHS Joints Subjected to Axial Loading[J].Journal of Harbin University of Architecture,2002,35(5):13-16,27.
[19]刘永健.矩形钢管混凝土桁架节点极限承载力试验与设计方法研究[D].长沙:湖南大学,2003.
LIU Yong-jian.Experiments on Ultimate Bearing Capacity and Research on Design Method of Joints of Concrete-filled Rectangular Steel Tube Truss[D].Changsha:Hunan University,2003.
[20]程 高,刘永健,田智娟,等.PBL加劲型矩形钢管混凝土不等宽T型节点受拉性能[J].长安大学学报:自然科学版,2015,35(3):83-90.
CHENG Gao,LIU Yong-jian,TIAN Zhi-juan,et al.Tensile Behavior of PBL Stiffened Concrete-filled Rectangular Steel Tubular Unequal T-connections[J].Journal of Chang'an University:Natural Science Edition,2015,35(3):83-90.
[21]WARDENIER J,DAVIES G,STOLLE P.The Effective Width of Branch Plate to RHS Chord Connections in Cross Joints[R].Delft:Delft University of Technology,1981.
[22]侯蓓蓓,刘永健,姜 磊,等.PBL加劲型矩形钢管混凝土支管受拉节点有效分布宽度[J].建筑科学与工程学报,2017,34(6):116-126.
HOU Bei-bei,LIU Yong-jian,JIANG Lei,et al.Effective Distribution Width of Tension Joints in Brace of Rectangular Concrete-filled Steel Tube Stiffened with PBL[J].Journal of Architecture and Civil Engineering,2017,34(6):116-126.
[23]JIANG L,LIU Y J,FAM A.Stress Concentration Factors in Joints of Square Hollow Section(SHS)Brace and Concrete-filled SHS Chord Under Axial Tension in Brace[J].Thin-walled Structures,2018,132:79-92.
[24]刘永健,姜 磊,熊治华,等.PBL加劲型矩形钢管混凝土受拉节点热点应力集中系数计算方法[J].交通运输工程学报,2017,17(5):1-15.
LIU Yong-jian,JIANG Lei,XIONG Zhi-hua,et al.Hot Spot SCF Computation Method of Concrete-filled and PBL-stiffened Rectangular Hollow Section Joint Subjected to Axial Tensions[J].Journal of Traffic and Transportation Engineering,2017,17(5):1-15.
[25]NIZER A,DE LIMA L R O,DA S VELLASCO P C G,et al.Experimental and Numerical Assessment of RHS T-joints Subjected to Brace and Chord Axial Forces[J].Steel Construction,2016,9(4):315-322.
[26]BECQUE J,WILKINSON T.The Capacity of Grade C450 Cold-formed Rectangular Hollow Section T and X Connections:An Experimental Investigation[J].Journal of Constructional Steel Research,2017,133:345-359.
[27]DAVIES G,CROCKETT P.The Strength of Welded T-DT Joints in Rectangular and Circular Hollow Section Under Variable Axial Loads[J].Journal of Constructional Steel Research,1996,37(1):1-31.
[28]KENEDI W W.Concrete-filled HSS Joints[D].Toronto:University of Toronto,1991.
[29]刘永健,周绪红,刘君平.矩形钢管混凝土T、Y型节点受压性能试验[J].长安大学学报:自然科学版,2008,28(5):48-52.
LIU Yong-jian,ZHOU Xu-hong,LIU Jun-ping.Behavior of Concrete-filled Rectangular Steel Tube T-joints and Y-joints Under Compression[J].Journal of Chang'an University:Natural Science Edition,2008,28(5):48-52.
[30]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(2):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(2):36-42.
[31]PACKER J A,DAVIES G,COUTIE M G.Yield Strength of Gapped Joints in Rectangular Hollow Section Trusses[J].Proceedings of the Institution of Civil Engineers,1980,69(4):995-1013.
[32]ZHAO X L.Deformation Limit and Ultimate Strength of Welded T-joints in Cold-formed RHS Sections[J].Journal of Constructional Steel Reearch,2000,53(2):149-165.

相似文献/References:

[1]刘永健,姜 磊,熊治华.矩形钢管节点屈服线和冲剪综合破坏模型[J].建筑科学与工程学报,2016,33(06):6.
 LIU Yong-jian,JIANG Lei,XIONG Zhi-hua.Comprehensive Failure Model of Yield Line and Punching Shear for Rectangular Steel Tube Joint[J].Journal of Architecture and Civil Engineering,2016,33(01):6.

备注/Memo

备注/Memo:
收稿日期:2019-11-26
基金项目:国家自然科学基金项目(51778058); 中央高校基本科研业务费专项资金项目(300102219310)
作者简介:刘永健(1966-),男,江西玉山人,教授,博士研究生导师,工学博士,E-mail:lyj.chd@gmail.com。
更新日期/Last Update: 2020-01-13