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单箱多室波形钢腹板组合箱梁的腹板剪应力分析

乔朋 狄谨 秦凤江

乔朋, 狄谨, 秦凤江. 单箱多室波形钢腹板组合箱梁的腹板剪应力分析[J]. 工程力学, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
引用本文: 乔朋, 狄谨, 秦凤江. 单箱多室波形钢腹板组合箱梁的腹板剪应力分析[J]. 工程力学, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
QIAO Peng, DI Jin, QIN Feng-jiang. SHEAR STRESS IN THE WEBS OF SINGLE-BOX MULTI-CELL COMPOSITE BOX GIRDERS WITH CORRUGATED STEEL WEBS[J]. Engineering Mechanics, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
Citation: QIAO Peng, DI Jin, QIN Feng-jiang. SHEAR STRESS IN THE WEBS OF SINGLE-BOX MULTI-CELL COMPOSITE BOX GIRDERS WITH CORRUGATED STEEL WEBS[J]. Engineering Mechanics, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043

单箱多室波形钢腹板组合箱梁的腹板剪应力分析

doi: 10.6052/j.issn.1000-4750.2016.01.0043
基金项目: 国家自然科学基金项目(51308053);中央高校基本科研业务费专项基金项目(2014G4284003)
详细信息
    作者简介:

    狄谨(1972-),男,湖南汨罗人,教授,博士,博导,从事钢结构与组合结构桥梁研究(E-mail:dijin@sina.com);秦凤江(1983-),男,辽宁朝阳人,讲师,博士,硕导,从事钢结构与组合结构桥梁研究(E-mail:qinfj1125@163.com).

    通讯作者: 乔朋(1982-),男,陕西渭南人,讲师,博士,硕导,从事钢结构与组合结构桥梁研究(E-mail:qiaopeng@chd.edu.cn).
  • 中图分类号: TU398+.9

SHEAR STRESS IN THE WEBS OF SINGLE-BOX MULTI-CELL COMPOSITE BOX GIRDERS WITH CORRUGATED STEEL WEBS

  • 摘要: 为研究单箱多室波形钢腹板组合箱梁的腹板受力特性,建立了单箱双室和单箱三室波形钢腹板组合梁的有限元模型,并与模型试验结果进行了对比验证。通过有限元分析得到了不同类型的横向对称和偏心荷载作用下各波形钢腹板剪应变的结果,并对单箱多室波形钢腹板组合箱梁各腹板剪应力分布的不均匀现象的特点和原因进行研究。结果表明:集中荷载和均布线荷载的横向作用位置不同时,单箱多室波形钢腹板组合箱梁各腹板的剪应力差异显著,对称荷载作用下的单个腹板实际剪应力与横截面所有腹板平均剪应力的比值可达2.0以上,偏心荷载作用下则超过4.5,设计计算时须考虑各腹板剪应力的不均匀分布;均布面荷载作用下各腹板的剪应力可近似按均匀分布计算。根据腹板剪应力特点,提出单箱多室波形钢腹板组合箱梁的钢腹板剪应力计算应包括弯曲剪应力、扭转剪应力以及局部畸变产生的剪应力。
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  • 收稿日期:  2016-01-18
  • 修回日期:  2017-04-01
  • 刊出日期:  2017-07-25

单箱多室波形钢腹板组合箱梁的腹板剪应力分析

doi: 10.6052/j.issn.1000-4750.2016.01.0043
    基金项目:  国家自然科学基金项目(51308053);中央高校基本科研业务费专项基金项目(2014G4284003)
    作者简介:

    狄谨(1972-),男,湖南汨罗人,教授,博士,博导,从事钢结构与组合结构桥梁研究(E-mail:dijin@sina.com);秦凤江(1983-),男,辽宁朝阳人,讲师,博士,硕导,从事钢结构与组合结构桥梁研究(E-mail:qinfj1125@163.com).

    通讯作者: 乔朋(1982-),男,陕西渭南人,讲师,博士,硕导,从事钢结构与组合结构桥梁研究(E-mail:qiaopeng@chd.edu.cn).
  • 中图分类号: TU398+.9

摘要: 为研究单箱多室波形钢腹板组合箱梁的腹板受力特性,建立了单箱双室和单箱三室波形钢腹板组合梁的有限元模型,并与模型试验结果进行了对比验证。通过有限元分析得到了不同类型的横向对称和偏心荷载作用下各波形钢腹板剪应变的结果,并对单箱多室波形钢腹板组合箱梁各腹板剪应力分布的不均匀现象的特点和原因进行研究。结果表明:集中荷载和均布线荷载的横向作用位置不同时,单箱多室波形钢腹板组合箱梁各腹板的剪应力差异显著,对称荷载作用下的单个腹板实际剪应力与横截面所有腹板平均剪应力的比值可达2.0以上,偏心荷载作用下则超过4.5,设计计算时须考虑各腹板剪应力的不均匀分布;均布面荷载作用下各腹板的剪应力可近似按均匀分布计算。根据腹板剪应力特点,提出单箱多室波形钢腹板组合箱梁的钢腹板剪应力计算应包括弯曲剪应力、扭转剪应力以及局部畸变产生的剪应力。

English Abstract

乔朋, 狄谨, 秦凤江. 单箱多室波形钢腹板组合箱梁的腹板剪应力分析[J]. 工程力学, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
引用本文: 乔朋, 狄谨, 秦凤江. 单箱多室波形钢腹板组合箱梁的腹板剪应力分析[J]. 工程力学, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
QIAO Peng, DI Jin, QIN Feng-jiang. SHEAR STRESS IN THE WEBS OF SINGLE-BOX MULTI-CELL COMPOSITE BOX GIRDERS WITH CORRUGATED STEEL WEBS[J]. Engineering Mechanics, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
Citation: QIAO Peng, DI Jin, QIN Feng-jiang. SHEAR STRESS IN THE WEBS OF SINGLE-BOX MULTI-CELL COMPOSITE BOX GIRDERS WITH CORRUGATED STEEL WEBS[J]. Engineering Mechanics, 2017, 34(7): 97-107. doi: 10.6052/j.issn.1000-4750.2016.01.0043
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