钢结构圆钢管相贯节点承载力与变形分析
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摘要
近年来我国大跨度钢结构发展迅速,特别是北京奥运会的大型体育场馆的建设规模和技术水平都是十分先进的,是我国钢结构发展的里程碑。随着空间钢结构以其优美的建筑造型和良好的力学性能在大跨度结构中得到广泛应用,K型系列圆钢管相贯节点(诸如平面K型、空间KK型节点等)作为相贯节点的主要表现型式,大量地存在于结构之中。然而,现行国内外规范对于空间复杂节点尚无具体设计规定。对于重大工程中较为复杂的该类型节点,目前只能通过试验手段来确定其受力性能。对复杂相贯节点的科研工作的进展缓慢已经严重影响了工程设计工作的安全性和经济性。对建筑结构中常见的K型圆钢管相贯节点静力性能进行全面深入的研究,在此基础上建立可靠、实用、系统的K型系列圆管节点承载力设计方法,用以指导工程设计和实践,已成为目前亟待解决的课题。
本文在评述国内外大量钢管相贯节点相关领域研究现状的基础上,以空间X+双KK型、空间双KK+系杆型、空间焊接X+双K型节点和空间铸钢X+双K型节点为研究对象,利用有限元软件ABAQUS对K型系列圆管节点静力性能进行了比较深入系统的研究。对每类节点,进行有限元模拟、参数分析,在严密的有限元计算和理论分析的基础上,根据研究结果,提出桁架结构复杂相贯节点的设计建议。通过本文的研究工作,得出了一些有益的结论,为以后有关规范的制定和进一步的研究工作提供了一些参考。
There is a meteoric rise to the development of the large space structure in China recently, especially it is outstanding for the construction scale and the technological level of Beijing Olympic Stadium and Gymnasium, which is a milestone of steel structure development in China. Along with the widespread use of space steel structure in large space structure area, which has a fame of gracious architectural molding and great mechanical performance, K-type RHS joints made of circular steel tubes(such as plane K-type and space double K-type joint etc.) are presented in amounts of structures, which plays a main appearance of RHS joints. Otherwise, there are no concrete design rules of complex space joints in domestic and foreign codes. To such type of complex joints in significant projects, experimental method is the only plan for setting the bearing capacity. As a result of slow progress in the researching work of complex RHS joints, it is forming a crucial effect on safety and economics of engineering design. The paper presents a total and deep-going research on static performance of RHS joints made of K-type circular tubes, which is usual in building structures.Based on researches,the paper brings a reliable,practical and systematical bearing capacity design method of K-type joints made of circular tubes,and realize an instruction of engineering design and practice, and has been an crucial problem that is in a need of being solved.
On the basis of review of researching situations of RHS joints made of steel tubes in homes and aboard,Space X-type plus double K-type joint, Space double K-type plus link-type joint, Space welding X-type plus double K-type joint and Space steel casting X-type plus double K-type joint are chose as study objects in the paper. With adopting infinite element software ABAQUS, the paper presents the deepen and systematical research on static performance of K-type joint made of circular tubes, and infinite element simulation and parameters analysis of varying joints are also proceeded, based on accurate infinite element calculation and theoretical analysis, according to research results, the paper gives the design suggestion that is of complex RHS joints of the truss structure. Through the research work of the paper, some pieces of helpful conclusions were brought to the upshot, which are provided some pieces of reference to formulation of codes and research works.
本文在评述国内外大量钢管相贯节点相关领域研究现状的基础上,以空间X+双KK型、空间双KK+系杆型、空间焊接X+双K型节点和空间铸钢X+双K型节点为研究对象,利用有限元软件ABAQUS对K型系列圆管节点静力性能进行了比较深入系统的研究。对每类节点,进行有限元模拟、参数分析,在严密的有限元计算和理论分析的基础上,根据研究结果,提出桁架结构复杂相贯节点的设计建议。通过本文的研究工作,得出了一些有益的结论,为以后有关规范的制定和进一步的研究工作提供了一些参考。
There is a meteoric rise to the development of the large space structure in China recently, especially it is outstanding for the construction scale and the technological level of Beijing Olympic Stadium and Gymnasium, which is a milestone of steel structure development in China. Along with the widespread use of space steel structure in large space structure area, which has a fame of gracious architectural molding and great mechanical performance, K-type RHS joints made of circular steel tubes(such as plane K-type and space double K-type joint etc.) are presented in amounts of structures, which plays a main appearance of RHS joints. Otherwise, there are no concrete design rules of complex space joints in domestic and foreign codes. To such type of complex joints in significant projects, experimental method is the only plan for setting the bearing capacity. As a result of slow progress in the researching work of complex RHS joints, it is forming a crucial effect on safety and economics of engineering design. The paper presents a total and deep-going research on static performance of RHS joints made of K-type circular tubes, which is usual in building structures.Based on researches,the paper brings a reliable,practical and systematical bearing capacity design method of K-type joints made of circular tubes,and realize an instruction of engineering design and practice, and has been an crucial problem that is in a need of being solved.
On the basis of review of researching situations of RHS joints made of steel tubes in homes and aboard,Space X-type plus double K-type joint, Space double K-type plus link-type joint, Space welding X-type plus double K-type joint and Space steel casting X-type plus double K-type joint are chose as study objects in the paper. With adopting infinite element software ABAQUS, the paper presents the deepen and systematical research on static performance of K-type joint made of circular tubes, and infinite element simulation and parameters analysis of varying joints are also proceeded, based on accurate infinite element calculation and theoretical analysis, according to research results, the paper gives the design suggestion that is of complex RHS joints of the truss structure. Through the research work of the paper, some pieces of helpful conclusions were brought to the upshot, which are provided some pieces of reference to formulation of codes and research works.
引文
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[2]鹫尾健三、黑羽启明.钢管相贯节点的研究[R].东京：日本建筑学会,1961.
[3]金谷弘.钢管结合部的局部变形试验的研究[R].东京：日本建筑学会,1961.
[4]Yura, J.A.,zettlemoyer, N.,Edwards, I.F.Ultimate Capacity of Circular Tubular Joints [J].Joural of structural Engineering, Vol.110, No.2, ebruary,1984: 385-400.
[5]Kurobane,Y.,Makino,Y.and Ochi,K.Ultimate Resistance of Unstiffened Tubular Joints[J].Journal of structuralEngineering, Vol.110,No.2, February,1984: 385-400.
[6]陈继祖,陆化谱.焊接管节点设计承载力公式研究[J].大连工学院学报,1986,24(2)：15-24.
[7]杨国贤,陈廷国.受拉T型管节点静承载力分析的实用计算方法[J].大连工学院学报,1987.26(2)：101-106
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[10]陈以一,沈祖炎,虞晓华.大直径钢管节点极限承载力的试验及分析[J].工程力学,1996(10)：51-56.
[11]Morgan M R, Lee M M K. New parametric equations for stress concentration factors in tubular K-joints under balanced axial loading[J].International Journal of Fatigue,1997,19(4):309-317.
[12]Lee M M. Strength, stress and fracture analyses of offshore tubular joints using finite Elements[J].Journal of Constructional Steel Research,1999, 51(3):265-286.
[13]詹深,陈以一,沈祖炎.圆钢管节点的强度计算公式[J].钢结构,1999,14(43)：53-56.
[14]Gazzola F, Lee M M, Dexter E M. Design Equation for Overlap Tubular K-Joints under Axial Loading[J].Journal of Structural Engineering,2000, 126(7):798-808.
[15]贺东哲,王元清,李少甫.管节点承载力的非线性有限元分析闭[J].工程力学,2000(04)：50-55.
[16]刘建平,郭彦林.K型方、圆管相贯节点的极限承载力非线性有限元分析[J].建筑科学,2001(2)：50-53.
[17]陈以一,王伟,赵宪忠等.圆钢管相贯节点抗弯刚度和承载力实验[J].建筑结构学报,2001,22(6)：25-30.
[18]朱庆科,舒宣武.平面K型钢管相贯节点极限承载力有限元分析[J].华南理工大学学报(自然科学版),2002,30(12)：62-65.
[19]丁芸孙.圆管结构相贯节点几个设计问题的探讨[J].空间结构,2002,8(02)：56-64.
[20]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,2003,31(5)：515-519.
[21]罗尧治,张楠.K型搭接节点承载力性能分析及建议公式[J].钢结构,2004(3)：23-26.
[22]舒兴平,朱邵宁,夏心红等.长沙贺龙体育场钢屋盖圆管相贯节点足尺试验研究[J].建筑结构学报,2004,25(03)：8-37.
[23]王伟,陈以一.圆钢管相贯节点的非刚性能与计算公式[J].工业建筑,2005,35(11)：6-9.
[24]何远宾,郝际平,曾坷.T型.N型圆管相贯节点滞回性能实验[J].重庆大学学报,2008,31(7)：730-739.
[25]刘曙,王辉,刘家华.武汉火车站多管相贯节点试验研究[J].施工技术,2010,39(7)：7-12.
[26]陈铁云,陈伯真,王友棋.海洋工程结构中K型管状接头的解析解法[J].海洋工程,1983(1)：24-35.
[27]Makino, Y. Experimental study on ultimate capacity and deformation for tubular joints [R],Doctoral dissertation, Osaka University,1984.
[28]Mouty,J.,and Rondal,J. Etude du comportement sous charge statique desassemblages soudes de profiles creux circulaires dans les pouters de sections triangulaires et quadrangulaires[R]. Res.Rep.,Univ. of Liege,Liege Belgium.1990.
[29]Paul J C, Makino Y, Kurobane Y. Ultimate Resistance of Unstiffened Multiplanar Tubular TT-and KK-Joints Journal of Structural Engineering,1994,120(10):2853-2870.
[30]Makino, Y, Kurobane, Y, Ochi, K., et al. Database of Test and Numerical Analysis Results for Unstiffened Tubular Joints[R], Ⅱ W Doc. ⅩⅤ E-9fi-220, Hungary,1996.
[31]Kang C T,Moffat D G,Mistry J,Strength of DT Tubular Joints with Brace and Chord Compression[J]. Structural Engineering, ASCE,1998,124(7):775-783
[32]Chiew Sing-Ping,Soh C K,Wu N W.Experimental and Numerical Stress Analyses of Tubular XT Joint[J]. Structural Engineering, ASCE,1999, 125(11):1239-1248.
[33]陈以一,沈祖炎,詹深等.直接汇交节点三重屈服线模型及试验验证[J].土木工程学报,1999,32(6)：27-39.
[34]舒宣武,朱庆科.空间KK型钢管相贯节点极限承载力有限元分析[J].华南理工大学学报自然科学版,2002,30(10)：102-106.
[35]陈以一,陈扬骥,詹深等.圆钢管空间相贯节点的实验研究.土木工程学报,2003,36(8)：24-30.
[36]方敏勇,郝际平.X型方管相贯节点极限承弯能力分析[J].重庆建筑大学学报,2003,25(6)：43-46.
[37]陶广亚.直接焊接圆钢管XK型空间节点非线性有限元分析[D].合肥：合肥工业大学,2004.
[38]褚胜,关毅明.空间KK型圆钢管相贯节点极限承载力有限元研究[J].广东土木与建筑,2005(5)：3-5.
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