| 箱型梁薄膜力剪滞效应分析 |
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| 引用本文： | 田民,罗旗帜.箱型梁薄膜力剪滞效应分析[J].佛山科学技术学院学报(社会科学版),1995(2). |
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| 作者姓名： | 田民 罗旗帜 |
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| 作者单位： | 桂林市基础公司，佛山大学土木工程与建筑学系 |
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| 摘 要： | 将箱型梁分解成薄板结构，应用简单的强度与材料关系，导出箱型梁的薄膜方程．根据微积分关系，得到了箱梁各板考虑剪滞效应的纵、横向薄膜力和薄膜剪力的计算公式．探讨了悬臂箱梁薄膜力剪滞效应随梁的跨宽比、宽高比以及荷载形式等因素变化的影响．本文所述的公式简单，可供工程设计中快速估算出箱型梁的剪滞效应．
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| 关 键 词： | 箱型梁，薄膜力，剪滞效应 |
An Analysis of Shear Lag Effect of Membrane Forces on Box Girders |
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| Tian Min, Luo Qizhi.An Analysis of Shear Lag Effect of Membrane Forces on Box Girders[J].Journal of Foshan University(Social Science),1995(2). |
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| Authors: | Tian Min Luo Qizhi |
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| Institution: | Tian Min; Luo Qizhi (Guilin Infrastructure company Guilin 541001)(Department of Architecture & Civil Engineering Foshan University Foshan 528000) |
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| Abstract: | A box girder was decomposed splint constructions and simple strength of material relations was used to derive membrane force equations. Computation formulas of longitudinal or transverse membrane forces and membrane shear force of the shear lag effect wereobtained. The variations of shear lag effect of cantilevered box girder, caused by the changeof factors such as span to width ratio, width to height ratio and types of loadings, were discussed. The simple method is convenient in estimating the shear lag effect on box gieders inengineering design. |
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| Keywords: | box girder membrane force shear lag effect |
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