Study on Structural Deformation of Reticulated Shells with Aluminum Alloy Gusset Joints Caused by Bolt Slippage

被引：0
|
作者：
Liu J. [1 ]
Luo Y. [1 ]
Guo X. [1 ]
Wang L. [1 ]
机构：
[1] College of Civil Engineering, Tongji University, Shanghai
来源：
Guo, Xiaonong (guo-xiao-nong@tongji.edu.cn) | 2020年 / Hunan University卷 / 47期
基金：
中国国家自然科学基金;
关键词：
Aluminum alloy; Bolt slippage; Gusset joint; Reticulated shell; Structural deformation;
D O I：
10.16339/j.cnki.hdxbzkb.2020.09.005
中图分类号：
学科分类号：
摘要：
The bolt slippage of gusset joints can cause structural deformation in aluminum alloy single-layer reticulated shells. The magnitude of deformation depends on the axial displacement of gusset joints, thus, a reasonable axial stiffness of gusset joints can model the bolt slippage to calculate the structural deformation. A stochastic-polylines model is proposed for the distance of bolt slippage influenced by the random error of bolt geometries. It is found that the structural deflection calculated with the stochastic-polylines model can be fitted by that calculated with an ideal four-polylines model. Based on the four-polylines model, a case study is used to research on the structural deflection which varies with bolt pre-tightening force. It is found that if pre-tightening forces are larger than a limit value, the structural deflection ranges with a small amplitude, otherwise it increases distinctly. Further numerical analysis concludes that the maximum deflection approximately linearly varies with the number of grid rings and the gap between bolt and hole. And it is also affected distinctly by the structural span, the ratio of structural height to span and support type, but uncorrelated with the geometry of member section and joint gusset and the scale of loads. Then, a formula to compute the maximum deflection is proposed. And the optimum diameters of holes in gusset joint are lastly suggested for the widely used bolt and rivet connections. © 2020, Editorial Department of Journal of Hunan University. All right reserved.
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页码：40 / 47
页数：7
相关论文
共 12 条
  • [1] GUO X N, XIONG Z, LUO Y F, Et al., The out-of-plane initial bending stiffness interaction of members on the aluminum alloy gusset joint, Journal of Hunan University (Natural Sciences), 42, 3, pp. 36-42, (2015)
  • [2] GUO X N, XIONG Z, LUO Y F, Et al., Theoretical study on bending stiffness of aluminum alloy gusset joint, Journal of Building Structures, 35, 10, pp. 144-150, (2014)
  • [3] XIONG Z, GUO X N, JIANG S C, Et al., Experimental study on buckling capacity of aluminum alloy gusset joint dome, Journal of Building Structures, 38, 7, pp. 9-15, (2017)
  • [4] XIONG Z, GUO X, LUO Y, Et al., Elasto-plastic stability of single-layer reticulated shells with aluminum alloy gusset joints, Thin-Walled Structures, 115, pp. 163-175, (2017)
  • [5] ZHU S, GUO X, LIU X, Et al., The in-plane effective length of members in aluminum alloy reticulated shell with gusset joints, Thin-Walled Structures, 123, pp. 483-491, (2018)
  • [6] LIU H, YING J, MENG Y, Et al., Flexural behavior of double-and single-layer aluminum alloy gusset-type joints, Thin-Walled Structures, 144, (2019)
  • [7] LIU J, LUO Y F, YANG X, Et al., A new approach to calculating structural geometric shape based on the correlation analysis of nodal positions, Journal of Hunan University (Natural Sciences), 46, 3, pp. 74-81, (2019)
  • [8] YANG F L, ZHU B R, XING H J., The slip characteristics and parametric study of bolted connections for transmission towers, Engineering Mechanics, 10, pp. 116-127, (2017)
  • [9] XIONG Z, GUO X, LUO Y, Et al., Experimental and numerical studies on single-layer reticulated shells with aluminum alloy gusset joints, Thin-Walled Structures, 118, pp. 124-136, (2017)
  • [10] GB 50205-2001 Code for acceptance of construction quality of steel structures, pp. 33-35, (2002)
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