[1]赵必大,等.X型矩形钢管相贯节点平面内抗弯刚度研究[J].西安建筑科技大学学报:自然科学版,2015,47(02):210-0216.
　ZHAO Bida,CHEN Xufang,SHI Xi,et al.Rigidity of unstiffened X-type RHS joints subjected to in-plane bending[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(02):210-0216.
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X型矩形钢管相贯节点平面内抗弯刚度研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年02期
页码:
210-0216
栏目:
出版日期:
2015-04-28

文章信息/Info

Title:
Rigidity of unstiffened X-type RHS joints subjected to in-plane bending
文章编号:
1006-7930(2015)02-0210-07
作者:
赵必大1;  2; 陈旭芳2; 石 希2; 申屠倩云2; 陈高峰3
(1. 浙江省工程结构与防灾减灾技术研究重点实验室,浙江杭州 310014;2. 浙江工业大学建筑工程学院,浙江 杭州 310014; 3. 杭州市建筑设计研究院有限公司,浙江杭州 310001)
Author(s):
ZHAO Bida1;  2CHEN Xufang 2;  SHI Xi2;  SHENGTU Qianyun2;  CHEN Gaofeng 3
( 1. Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology of Zhejiang Province, Hangzhou 310014, China ; 2. College of Building Engineering, Zhejiang University of technology, Hangzhou 310014, China; 3. Hangzhou Architectural Design &Research Institute Co. Ltd, Hangzhou 310001, China)
关键词:
X型矩形钢管相贯节点; 节点平面内抗弯初始刚度; 6杆系模型; 参数化分析
Keywords:
unstiffened x-type RHS joints; initial stiffness of joints subjected to in-plane bending;  six-beams model;  parametric analysis
分类号:
TU317
文献标志码:
A
摘要:
在分析平面内弯矩作用下节点有限元模型的局部变形特征和借鉴前人将节点强度计算的塑性铰线模型改进用来建立T型节点轴向刚度计算模型的基础上，建立用于X型矩形钢管相贯节点平面内抗弯刚度计算的6杆系模型，并利用最小势能原理确定6杆系模型中每根杆的跨度和截面宽度，在分析确定了每根杆的边界条件后推导出节点平面内抗弯刚度理论公式．通过对节点板壳有限元模型计算所得数据进行单参数分析，研究各参数对节点抗弯刚度的影响，在此基础上修正节点刚度理论公式，并利用多元回归分析技术，最终建立可用于工程计算的节点平面内抗弯初始刚度参数化公式，并通过有限元计算结果来校验其合理性．
Abstract:
By analyzing the local deformation behavior of joint finite element model subjected in-plane bending, and using the methods about improved a yield line model (which used for calculating RHS-joint axial strength ) to establish a axial rigidity calculation model for T-type RHS, a rigidity model named six-beams model is developed for unstiffened x-type RHS joints subjected to in-plane bending. The spans and section breadth of every beam (which form six-beams model) is determined by principle of minimum potential energy, and a theoretical formula for flexural rigidity is established after the boundary conditions of the beams is determined. The influence on flexural rigidity from every parameter of the joint is researched by one-parameter analysis from the datum calculated by plate-shell finite element model of RHS x-type joint. On those basis, the theoretical formula is modified. Then, a parametric formulae for predicting initial flexural rigidity of unstiffened x-type RHS joints subjected to in-plane bending is established through multi-variable nonlinear regression analyses, and the parametric formulae is reliable by comparing with results of FEA

参考文献/References:

References
[1] OCHI K．Rotational stiffness of rectangular tubularjoints flexural rigidity equation and classification ofunstiffened connections[C]//4th Pacific StructuralSteel Conference, New York: Elsevier Science Ltd, 1995.
[2] KAVEH A, MOEZ H. Analysis of frames with semi-rigid
Joints: A graph-theoretical approach[J]．Engineering Structures2006, 28(6): 829-836.
[3] WANG J F, LI G Q. A practical design method for semi-rigid composite frames under vertical loads[J]. Journal of Constructional Steel Research, 2008, 64(2): 176-189.
[4] 王伟，陈以一. 节点半刚性钢桁架受压腹杆计算长度分析. 工程力学，2005，22 131-135.
WANG Wei, CHEN Yiyi. Analysis of effective length of compressive braces in simi-rigid steel trusses[J]. Engineering mechanics, 2005, 22(5): 131-135.
[5] 马会环半刚性节点单层球面网壳稳定性及其节点性能研究哈尔滨2007.
MA Hui huang. Stability analysis of semi-rigidity single layer spherical reticulated shells and its joint system[D]. Harbin: Harbin Institute of Technology, 2007.
[6] 范峰，曹正罡，崔美艳. 半刚性节点单层球面网壳的弹塑性稳定性分析. 哈尔滨工业大学学报，2009，411-6.
FAN Feng, CAO Zhenggang, CU Meiyan. Elastic-plastic stability of semi-rigidity joint single-layer reticulated domes[J]. Journal of Harbin Institute of Technology, 2009, 41(4): 1-6.
[7] 贾良玖. 单层网壳节点分类标准[D].上海：同济大学，2010.
JIA Liangjiu. Connection classification system for single-layered reticulated shells[D]. Shanghai: Tongji University, 2010.
[8] 王啸. 方钢管相贯节点转动刚度性能研究[D]. 西安：西安建筑科技大学，2005.
WANG Xiao. Studies on the rigidity of rotation for Rectangular Hollow Section (RHS) structure joints[D]. Xi’an: Xi’an University of Architecture & Technology, 2005..
[9] 杜纯领. X型圆钢管相贯节点 Study on out-of-plane bending properties of unstiffened X-type tubular joint[D]. Shanghai: Tongji University, 2007.
[10] 孟宪德. X型圆钢管相贯节点Research on hysteretic behavior of unstiffened CHS X-joints under out-of-plane bending[D]. Shanghai: Tongji University, 2010.
[11] 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): 22-27. WU Zhenyu, TAN Huiguang, ZHANG Yaochun. Stiffness of stepped T-type RHS joints subjected to axial loading[J]. Journal of Harbin University of C.E.& Architectur, 2002, 35(5): 22-27.
[12] WARDENIER J. 钢管截面的结构应用[M]. 张其林，刘大康 译. 上海：同济大学出版社，2004.

备注/Memo

备注/Memo:
收稿日期：2014-10-23 修改稿日期：2015-4-14
基金项目：浙江省教育厅基金资助项目（Y201225770）收稿日期：2014-10-23 修改稿日期：2015-4-14
作者简介：赵必大（1976-），男，讲师，博士，主要从事钢结构与组合结构方面的研究．E-mail: zhaobida@126.com
更新日期/Last Update: 2015-09-01