加劲肋对齐平端板半刚性节点力学性能影响
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摘要
以装配式住宅工程为研究背景,通过有限元计算和试验研究特定型钢截面下加劲肋对于齐平端板连接半刚性节点力学性能的影响。根据试验加载现象、有限元计算结果和节点所受弯矩与梁柱相对转角曲线(M-θ曲线),表明加劲肋能改变这种齐平端板半刚性节点的初始刚度,提高节点极限承载能力,但提高效果并不显著,在此工程应用中可不设置节点域加劲肋。
Based on the background of prefabricated residential projects, the effects of the stiffeners under the section of a specific section steel on the mechanical properties of the flush end plates semi-rigid joints were studied by finite element calculation and experimental calculation. According to the test loading phenomenon, finite element calculation results and the curve of joint moment and relative angle of beam-column(M-θ curve), it is shown that the stiffener can change the initial stiffness of the flush end plate semi-rigid joint and improve the ultimate bearing capacity of the joint, but the improvement effect is not significant, node domain stiffeners may not be set in this engineering application.
Based on the background of prefabricated residential projects, the effects of the stiffeners under the section of a specific section steel on the mechanical properties of the flush end plates semi-rigid joints were studied by finite element calculation and experimental calculation. According to the test loading phenomenon, finite element calculation results and the curve of joint moment and relative angle of beam-column(M-θ curve), it is shown that the stiffener can change the initial stiffness of the flush end plate semi-rigid joint and improve the ultimate bearing capacity of the joint, but the improvement effect is not significant, node domain stiffeners may not be set in this engineering application.
引文
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[2] 李清扬,任玉卓,刘远鹏,等.波纹腹板H型钢梁柱半刚性外伸端板连接性能研究[J].施工技术,2015,44(20):96-99.
[3] 杨万斌,张燕,任玉卓.波纹腹板H型钢梁顶底角钢半刚性节点研究[J].河北工程大学学报:自然科学版,2015,32(2):28-30,35.
[4] 徐凌,李晓龙.钢结构半刚性节点连接试验与性能分析[J].辽宁工程技术大学学报,2006(1):66-69.
[5] 翁庆莲.钢框架梁柱T型钢连接节点的本构模型研究[D].南宁:广西大学,2015.
[6] 舒兴平,胡习兵,熊曜.钢框架梁柱T型钢半刚性连接节点的性能研究[J].建筑结构,2006,36(8):6-9.
[7] ADEY B T, GRONDIN G Y, CHENG J R. Cyclic loading of end plate moment connections[J]. Canadian Journal of Civil Engineering, 2000, 27(4), 683-701.
[8] 樊宝锋. 钢结构梁柱端板连接节点的有限元分析[D].北京:北京交通大学,2007.
[9] LOUREIRO A, MORENO A, GUTIERREZ R, et al. Experimental and numerical analysis of three- dimensional semi-rigid steel joints under non-ortional loading [J]. Engineering Structures, 2012(38):68-77.
[10] 吴兆旗, 张素梅, 姜绍飞. 梁柱外伸端板连接弯矩-转角性能有限元分析[J]. 应用基础与工程科学学报, 2010, 18(6):922-932.
[11] WU T Y, LIU G R. A differential quadrature as a numerical method to solve differential equations[J]. Computational Mechanics, 1999, 24(3):197-205.
[12] LAURA P A A, SUSEMIHL E A, POMBO J L, et al. On the dynamic behaviour of structural elements carrying elastically mounted, concentrated masses[J]. Applied Acoustics, 1977, 10(2):121-145.
[13] AVALOS D R, LARRONDO H, LAURA P A A. Vibrations of a simply supported plate carrying an elastically mounted concentrated mass[J]. Ocean Engineering, 1993, 20(2):195-205.
[14] 施刚, 石永久, 王元清, 等. 钢结构梁柱半刚性端板连接弯矩-转角全曲线计算方法[J]. 工程力学, 2006, 23(5):67-73.
[15] 钢及钢产品力学性能试验取样位置及试样制备:GB/T 2975—1998 [S].北京:中国标准出版社,1999.
[16] 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:中国标准出版社,2011.
[17] 龚曙光,谢桂兰.ANSYS操作命令与参数化编程[M].北京:机械出版社,2010.
[18] 刘相新,孟宪颐.ANSYS基础与应用教程[M].北京:科学出版社,2006.
[19] 柳长江,顾强. 角钢连接半刚性节点的非线性有限元分析[J]. 建筑结构,2005,35(6):35-36,78.