| 横向加劲肋对箱梁底板受力的作用分析 |
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| 引用本文： | 葛万光,叶见曙,马莹.横向加劲肋对箱梁底板受力的作用分析[J].交通标准化,2011(23):133-136. |
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| 作者姓名： | 葛万光 叶见曙 马莹 |
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| 作者单位： | 1. 东南大学建筑设计研究院,江苏南京,210096
2. 东南大学交通学院,江苏南京,210096 |
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| 摘 要： | 根据某连续刚构桥合龙段的空间模型,分析无加劲肋以及在跨中设置四道加劲肋时箱梁底板的应力状况,并研究加劲肋尺寸变化对箱梁底板受力的影响。结果表明：设置加劲肋对底板受力性能有很大的改善,特别是加劲肋对底板横向刚度的贡献,使得底板横向拉应力显著减小。底板横向应力对加劲肋高度变化较敏感,随着加劲肋高度的增加,横向拉应力逐渐减小;底板纵向应力对加劲肋宽度变化较敏感,随着宽度的增加纵向应力逐渐增大。
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| 关 键 词： | 连续刚构桥 箱梁底板 横向加劲肋 尺寸变化 受力分析 |
Mechanical Analysis of Transverse Stiffener Effect on Bottom Slab of Box Girder |
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| GE Wan-guang
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YE Jian-shu
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MA Ying.Mechanical Analysis of Transverse Stiffener Effect on Bottom Slab of Box Girder[J].Communications Standardization,2011(23):133-136. |
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| Authors: | GE Wan-guang YE Jian-shu MA Ying |
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| Institution: | GE Wan-guang1,YE Jian-shu2,MA Ying2(1.Architectural Design & Research Institute of Southeast University,Nanjing 210096,China,2.School of Transportation,Southeast University,China) |
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| Abstract: | According to a continuous rigid frame bridge model of the space,it analysis non-stiffening rib and the stress situation when four inter-stiffening rib are set up at the bottom of the box girder,and studies the influence of stiffening rib size change on the bottom of the box girder.The result shows that setting stiffening rib on the bottom of the box girder,the stress performance is greatly improved,and particularly the contribution of stiffening rib on lateral rigidity of the floor makes floor horizontal st... |
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| Keywords: | continuous rigid frame bridge bottom slab transverse stiffener size change stress analysis |
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