| 斜交角度对单跨超静定曲梁内力的影响 |
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| 引用本文： | 张元海.斜交角度对单跨超静定曲梁内力的影响[J].城市道桥与防洪,2008(12):24-26. |
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| 作者姓名： | 张元海 |
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| 作者单位： | 兰州交通大学,甘肃兰州,730070 |
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| 摘 要： | 为了揭示斜支承曲线梁桥的力学特性，应用结构有限元分析软件ANSYS建立斜支承单跨曲梁模型，详细分析斜度、弯扭刚度比、荷载类型等对斜支承曲粱内力的影响，绘制的大量曲线清晰显示了各项因素对斜支承曲梁内力的影响规律。研究结果表明，对单跨曲梁，如果一端为斜支承且斜度为正时，该支点截面将产生负弯矩，且负弯矩随着斜度增大而增大；当斜度为负时，存在一个使支点截面产生正弯矩的临界斜度，该斜度随弯扭刚度比的增大而增大。
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| 关 键 词： | 桥梁工程 力学特性 有限元法 曲线桥 斜交桥 斜度 弯扭刚度比 |
Influence of Skew Angle on Internal Force of Single-span Over-static Determinate Curved Beam |
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| Zhang Yuanhai.Influence of Skew Angle on Internal Force of Single-span Over-static Determinate Curved Beam[J].Urban Roads Bridges & Flood Control,2008(12):24-26. |
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| Authors: | Zhang Yuanhai |
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| Abstract: | In order to open out the mechanics characteristic of the raking shoring curve beam bridge,the finite element analysis software ANSYS of structure is used to set up the raking shoring single-span curved beam model.It analyzes in detail the influence of slope,crankling rigidity ratio,loading type and etc.on the internal force of raking shoring curved beam,and draws a great deal of curves clearly to display the influence laws of various factors on the internal force of raking shoring curved beam.The study resu... |
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| Keywords: | bridge engineering mechanics characteristic finite element method curve bridge skew bridge slope crankling rigidity ratio |
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