黄石奥体中心体育场铸钢节点受力性能试验研究
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摘要
黄石奥体中心体育馆钢结构罩蓬采用了树状支撑铸钢节点,为考察其在最不利设计工况下的受力性能,对树状支撑铸钢节点进行了足尺试验研究和非线性有限元分析。试验结果表明,在1.3倍设计荷载工况作用下,节点处于弹性状态,卸载后没有明显残余变形。有限元分析结果与试验结果吻合良好,弹塑性有限元分析得到的铸钢节点极限承载力满足《铸钢节点应用技术规程》中的相关要求,该铸钢节点具有较高的强度储备。分析了轴力与弯矩共同作用下铸钢空心球节点的应力分布规律,可为铸钢空心球节点的设计提供参考。
Cast steel joints are introduced into the dendriform roof structure for the Huangshi Olympic Sports Center.Full scale test and nonlinear finite element(FE)analysis are carried out to investigate the mechanical behavior of the cast steel joints under the most unfavorable design load condition.The results indicate that the cast steel joint exhibits elastic behavior up to 130% design load,and no residual deformation after unloading is observed.The FE results agree well with the test data,and the ultimate load-bearing capacity of the cast steel joint obtained from the elastic-plastic FE analysis satisfies the relevant requirements from the Technical Specification for Application of Connections of Structural Steel Casting,with relatively high strength reserve being achieved.Moreover,the stress distribution pattern of cast steel hollow spherical joint subjected to axial load and bending moment is analyzed,and this provides reference for the design of cast steel hollow spherical joints.
Cast steel joints are introduced into the dendriform roof structure for the Huangshi Olympic Sports Center.Full scale test and nonlinear finite element(FE)analysis are carried out to investigate the mechanical behavior of the cast steel joints under the most unfavorable design load condition.The results indicate that the cast steel joint exhibits elastic behavior up to 130% design load,and no residual deformation after unloading is observed.The FE results agree well with the test data,and the ultimate load-bearing capacity of the cast steel joint obtained from the elastic-plastic FE analysis satisfies the relevant requirements from the Technical Specification for Application of Connections of Structural Steel Casting,with relatively high strength reserve being achieved.Moreover,the stress distribution pattern of cast steel hollow spherical joint subjected to axial load and bending moment is analyzed,and this provides reference for the design of cast steel hollow spherical joints.
引文
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[12]马洪涛,孙亚龙,顾建,等.南通市体育会展中心铸钢节点模型的非线性有限元分析[J].建筑钢结构进展,2007,9(2):38-42.DOI:10.3969/j.issn.1671-9379.2007.02.007.MA Hongtao,SUN Yalong,GU Jian,et al.Nonlinear analysis of cast steel joints for the Center of Exhibition and Sport in Nantong[J].Progress in Steel Building Structures,2007,9(2):38-42.DOI:10.3969/j.issn.1671-9379.2007.02.007.(in Chinese)
[13]卞若宁,陈以一,赵宪忠,等.空间结构大型铸钢节点试验研究[J].建筑结构,2002,32(12):45-47.DOI:10.19701/j.jzjg.2002.12.014.BIAN Ruoning,CHEN Yiyi,ZHAO Xianzhong,et al.Experimental study on large cast steel joints of spatial structure[J].Building Structure,2002,32(12):45-47.DOI:10.19701/j.jzjg.2002.12.014.(in Chinese)
[14]同济大学,清华大学,中国钢结构协会专家委员会.铸钢节点应用技术规程:CECS 235:2008[S].北京:中国计划出版社,2008.Tongji University,Tsinghua University,Expert Committee of China Steel Structure Association.Technical Specification for Application of Connections of Structural Steel Casting:CECS235:2008[S].Beijing:China Planning Press,2008.(in Chinese)
[15]中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1-2010[S].北京:中国标准出版社,2010.General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China.Metallic Materials-Tensile Testing-Part 1:Methods of Test at Room Temperature:GB/T 228.1-2010[S].Beijing:Standards Press of China,2010.(in Chinese)
[2]ALINIA M M,KASHIZADEH S.Effects of support positioning on thermal behavior of double layer space truss domes[J].Journal of Constructional Steel Research,2007,63(3):375-382.DOI:10.1016/j.jcsr.2006.05.005.
[3]HALDIMANN-STURM S C,NUSSBAUMER A.Fatigue design of cast steel nodes in tubular bridge structures[J].International Journal of Fatigue,2008,30(3):528-537.DOI:10.1016/j.ijfatigue.2007.03.007.
[4]刘锡良,林彦.铸钢节点的工程应用与研究[J].建筑钢结构进展,2004,6(1):12-19.DOI:10.3969/j.issn.1671-9379.2004.01.003.LIU Xiliang,LIN Yan.Engineering application and research of cast steel joints[J].Progress in Steel Building Structures,2004,6(1):12-19.DOI:10.3969/j.issn.1671-9379.2004.01.003.(in Chinese)
[5]DU W,SUN Y,YANG M.Bearing capacity of the cast-steel joint with branches under eccentric load[J].Journal of Constructional Steel Research,2017,135:285-291.DOI:10.1016/j.jcsr.2017.04.005.
[6]ZHAO X L,TONG L W.New development in steel tubular joints[J].Advances in Structural Engineering,2011,14(4):699-716.DOI:10.1260/1369-4332.14.4.699.
[7]陈海洲,王玉岭,王桂玲.航海博物馆铸钢节点试验研究与有限元分析[J].建筑结构,2011,41(增刊1):836-839.DOI:10.19701/j.jzjg.2011.s1.198.CHEN Haizhou,WANG Yuling,WANG Guiling.Experimental study and FEM analysis the Sailing Museum cast steel joints[J].Building Structure,2011,41(Suppl.1):836-839.DOI:10.19701/j.jzjg.2011.s1.198.(in Chinese)
[8]张向荣,祖青.弯矩作用下铸钢空心球节点承载力的有限元分析[J].工程建设与设计,2011(5):44-45,49.DOI:10.3969/j.issn.1007-9467.2011.05.011.ZHANG Xiangrong,ZU Qing.Nonlinear FEM analysis of bearing capacity of cast steel hollow spherical joint under moment[J].Construction&Design for Project,2011(5):44-45,49.DOI:10.3969/j.issn.1007-9467.2011.05.011.(in Chinese)
[9]GRAY M G,PACKER J A,HERION S.Castings in tubular structures-the state of the art[J].Proceedings of the Institution of Civil Engineers:Structures and Buildings,2010,163(6):403-415.DOI:10.1680/stbu.2010.163.6.403.
[10]王帆,吴波,黄仕香,等.深圳大运中心体育馆铸钢节点构造选型和模型试验研究[J].建筑结构学报,2010,31(4):44-53.DOI:10.14006/j.jzjgxb.2010.04.006.WANG Fan,WU Bo,HUANG Shixiang,et al.Research on structure selection and model test of cast steel joint used in the Gymnasium of Shenzhen Universiade Sport Center[J].Journal of Building Structures,2010,31(4):44-53.DOI:10.14006/j.jzjgxb.2010.04.006.(in Chinese)
[11]杜新喜,刘茂青,赵辉,等.张弦桁架铸钢支承节点受力性能研究[J].建筑结构学报,2013,34(11):76-81.DOI:10.14006/j.jzjgxb.2013.11.011.DU Xinxi,LIU Maoqing,ZHAO Hui,et al.Study on mechanical behavior of cast steel support joint of truss string structure[J].Journal of Building Structures,2013,34(11):76-81.DOI:10.14006/j.jzjgxb.2013.11.011.(in Chinese)
[12]马洪涛,孙亚龙,顾建,等.南通市体育会展中心铸钢节点模型的非线性有限元分析[J].建筑钢结构进展,2007,9(2):38-42.DOI:10.3969/j.issn.1671-9379.2007.02.007.MA Hongtao,SUN Yalong,GU Jian,et al.Nonlinear analysis of cast steel joints for the Center of Exhibition and Sport in Nantong[J].Progress in Steel Building Structures,2007,9(2):38-42.DOI:10.3969/j.issn.1671-9379.2007.02.007.(in Chinese)
[13]卞若宁,陈以一,赵宪忠,等.空间结构大型铸钢节点试验研究[J].建筑结构,2002,32(12):45-47.DOI:10.19701/j.jzjg.2002.12.014.BIAN Ruoning,CHEN Yiyi,ZHAO Xianzhong,et al.Experimental study on large cast steel joints of spatial structure[J].Building Structure,2002,32(12):45-47.DOI:10.19701/j.jzjg.2002.12.014.(in Chinese)
[14]同济大学,清华大学,中国钢结构协会专家委员会.铸钢节点应用技术规程:CECS 235:2008[S].北京:中国计划出版社,2008.Tongji University,Tsinghua University,Expert Committee of China Steel Structure Association.Technical Specification for Application of Connections of Structural Steel Casting:CECS235:2008[S].Beijing:China Planning Press,2008.(in Chinese)
[15]中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1-2010[S].北京:中国标准出版社,2010.General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China.Metallic Materials-Tensile Testing-Part 1:Methods of Test at Room Temperature:GB/T 228.1-2010[S].Beijing:Standards Press of China,2010.(in Chinese)