| 钢-混双面结合梁正常使用阶段的截面刚度分析 |
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| 引用本文： | 李世霞,段树金,段艳菊. 钢-混双面结合梁正常使用阶段的截面刚度分析[J]. 国防交通工程与技术, 2006, 4(1): 29-32 |
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| 作者姓名： | 李世霞 段树金 段艳菊 |
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| 作者单位： | 石家庄铁道学院土木工程分院,河北,石家庄,050043 |
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| 摘 要： | 对钢—混凝土双面结合梁在支座和跨中的截面刚度进行了分析研究,按照中和轴在钢梁内、下翼缘混凝土板内两种情况分别对钢-混凝土双面结合梁截面刚度进行了计算。在连续梁中选取了一跨为独立分析单元,将其看作分段等刚度梁,并对该梁在正常使用阶段的变形进行了计算。按照结构力学原理得出了在均布荷载和梁端弯矩作用下梁的跨中挠度计算公式。
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| 关 键 词： | 钢—混凝土双面结合梁 正常使用阶段 截面刚度 变形 |
| 文章编号： | 1672-3953（2006）01-0029-04 |
| 收稿时间： | 2005-07-19 |
| 修稿时间： | 2005-07-19 |
On the Analysis of the Section Stiffness of the Double Steel-Concrete Composite Beams |
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| LI Shi-xia,DUAN Shu-jin,DUAN Yan-ju. On the Analysis of the Section Stiffness of the Double Steel-Concrete Composite Beams[J]. Traffic Engineering and Technology for National Defence, 2006, 4(1): 29-32 |
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| Authors: | LI Shi-xia DUAN Shu-jin DUAN Yan-ju |
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| Affiliation: | The Civil Engineering School of the Shijiazhuang Railway Institute,Shijiazhuang 050043,China |
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| Abstract: | In order to analyze the section stiffness of the double steel-concrete composite beams at the serviceability limit stage, section stiffness is calculated according to the position where the neutral axis is. With a span of the continuous beams chosen as an independent element for analyzing, section stiffness of the negative moment region and the middle of the span are calculated separately. In the light of the principle of structural mechanics, the calculating formulae of the deformation is obtained on the middle of the span. |
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| Keywords: | double steel-concrete composite beams serviceability limit stage section stiffness deformation |
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