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摩擦型高强度螺栓长接头传力比的计算

谭鼎融 黄永辉 曾志伟 陈碧静

谭鼎融, 黄永辉, 曾志伟, 陈碧静. 摩擦型高强度螺栓长接头传力比的计算[J]. 工程力学, 2022, 39(S): 109-114. doi: 10.6052/j.issn.1000-4750.2021.05.S018
引用本文: 谭鼎融, 黄永辉, 曾志伟, 陈碧静. 摩擦型高强度螺栓长接头传力比的计算[J]. 工程力学, 2022, 39(S): 109-114. doi: 10.6052/j.issn.1000-4750.2021.05.S018
TAN Ding-rong, HUANG Yong-hui, ZENG Zhi-wei, CHEN Bi-jing. CALCULATION OF FORCE TRANSMISSION RATIO OF FRICTION HIGH STRENGTH BOLTS CONNECTIONS[J]. Engineering Mechanics, 2022, 39(S): 109-114. doi: 10.6052/j.issn.1000-4750.2021.05.S018
Citation: TAN Ding-rong, HUANG Yong-hui, ZENG Zhi-wei, CHEN Bi-jing. CALCULATION OF FORCE TRANSMISSION RATIO OF FRICTION HIGH STRENGTH BOLTS CONNECTIONS[J]. Engineering Mechanics, 2022, 39(S): 109-114. doi: 10.6052/j.issn.1000-4750.2021.05.S018

摩擦型高强度螺栓长接头传力比的计算

doi: 10.6052/j.issn.1000-4750.2021.05.S018
基金项目: 国家自然科学基金面上项目(11972123,51878188);高等学校学科创新引智计划项目(111计划D21021)
详细信息
    作者简介:

    谭鼎融(1994−),男,广西梧州人,硕士生,主要从事桥梁工程研究(E-mail: 2111916171@e.gzhu.edu.cn)

    曾志伟(1996−),男,江西赣州人,硕士生,主要从事桥梁工程研究(E-mail: 2111916074@e.gzhu.edu.cn)

    陈碧静(1997−),女,广东湛江人,硕士生,主要从事桥梁工程研究(E-mail: 2111916076@e.gzhu.edu.cn)

    通讯作者:

    黄永辉(1982−),男,湖南株洲人,副研究员,博士,主要从事桥梁工程研究(E-mail: huangyh@gzhu.edu.cn)

  • 中图分类号: TH131.3

CALCULATION OF FORCE TRANSMISSION RATIO OF FRICTION HIGH STRENGTH BOLTS CONNECTIONS

  • 摘要: 摩擦型高强螺栓连接接头在现代钢桥中的应用越来越广泛,为研究各排螺栓的传力比特性,根据文献试验结果及有限元数值模拟结果,对螺栓的荷载滑移曲线进行了拟合,在此基础上建立了长列螺栓群接头的受力简化模型,由变形协调条件,通过求解静力平衡方程组,提出了各排螺栓传力比理论计算方法。为验证该理论方法的正确性,设计了2组螺栓接头,实测了其螺栓传力比,试验结果表明,该文方法与试验结果吻合良好。最后对影响螺栓传力的各参数进行研究,结果表明:传力比与芯板与盖板的板厚比,螺栓排数,孔间距等均有显著关系,当螺栓排数大于5时,建议首排螺栓传力比取0.389。
  • 图  1  长列螺栓接头计算模型

    Figure  1.  Mechanical model of HSFG connection

    图  2  典型的螺栓P-Δ曲线

    Figure  2.  Curves of P-Δ for single bolt

    图  3  试验模型 /mm

    Figure  3.  Testing model

    图  4  有限元模型

    Figure  4.  FEM model

    图  5  接触面示意图

    Figure  5.  Schematic of the contact surface

    图  6  有限元模拟结果与试验、公式计算结果对比

    Figure  6.  The results comparison of finite element, experiment and formula calculation

    图  7  修正前后公式计算位移与有限元结果对比

    Figure  7.  Comparison between the displacement calculated by the modified formula and the finite element results

    图  8  试验模型尺寸图 /mm

    Figure  8.  Testing model size

    图  9  试验模型加载图

    Figure  9.  Strain gages arrangement of the mode

    图  10  计算模型图 /mm

    Figure  10.  Calculation model diagram

    图  11  传力比-螺栓间距关系曲线

    Figure  11.  Force transmission ratio-bolt distance curve

    图  12  传力比-板厚比关系曲线

    Figure  12.  Force transmission ratio - plate thickness ratio curve

    表  1  试件1试验值与理论值对比

    Table  1.   Comparison between the test and finite element results

    荷载/kN试验值理论值
    β1β2β3β1β2β3
    1800.4700.1350.3960.4070.2620.332
    2400.4500.1410.4080.4070.2620.332
    3000.4310.1550.4150.4070.2620.332
    下载: 导出CSV

    表  2  试件2试验值与理论值对比

    Table  2.   Comparison between the test and finite element results

    荷载/kN试验值理论值
    β1β2β3Β4β1β2β3Β4
    3000.4150.1030.1120.3710.3480.2010.1750.276
    4000.4030.1150.1090.3730.3480.2010.1750.276
    5000.3920.1320.1140.3620.3480.2010.1750.276
    下载: 导出CSV

    表  3  不同螺栓排数接头传力比

    Table  3.   Force transmission ratio of HSFG joint with different bolt rows

    螺栓排数β1β2β3β4β5β6β7β8β9
    20.5250.475
    30.4260.2160.358
    40.4000.1460.1300.325
    50.3920.1250.0630.1040.315
    60.3900.1190.0440.0390.0970.312
    70.3890.1180.0380.0190.0310.0940.311
    80.3890.1170.0360.0130.0120.0290.0940.311
    90.3890.1170.0350.0110.0060.0090.0280.0940.311
    下载: 导出CSV
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  • 被引次数: 0
出版历程
  • 收稿日期:  2021-05-12
  • 修回日期:  2022-02-25
  • 网络出版日期:  2022-05-04
  • 刊出日期:  2022-06-06

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