| 一种分析曲线箱梁剪力滞效应的传递矩阵法 |
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| 引用本文： | 何云勇.一种分析曲线箱梁剪力滞效应的传递矩阵法[J].重庆交通大学学报(自然科学版),2010,29(5). |
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| 作者姓名： | 何云勇 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 摘 要： | 基于能量泛函变分原理及箱梁翼板的剪力滞翘曲位移函数,导出了曲线箱梁的弹性控制微分方程、边界条件并运用消元法求得其闭合解。基于多跨曲线桥跨界的静力平衡及连续条件,给出了跨间矩阵和节点矩阵,建立了变形和内力的传递矩阵,提出了一种计算曲线箱梁剪力滞的传递矩阵法。算例表明了该方法的有效性。
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| 关 键 词： | 曲线箱梁桥 剪力滞效应 跨间矩阵 节点矩阵 传递矩阵法 |
Transfer Matrix Method for Analyzing Shear Lag Effect of Curved Box Girder Bridge |
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| HE Yun-yong.Transfer Matrix Method for Analyzing Shear Lag Effect of Curved Box Girder Bridge[J].Journal of Chongqing Jiaotong University,2010,29(5). |
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| Authors: | HE Yun-yong |
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| Institution: | HE Yun-yong(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China) |
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| Abstract: | Based on the potential energy variation functional principle and the warping displacement function under shear lag effect of the box girder fender,the governing differential equations and boundary conditions of a curved box girder are derived.The closed solutions of governing differential equations are derived by the elimination method.And the starting parameter equations of calculating deformation and internal force for the curved girders are derived.Based on the static equilibrium and consecutive conditio... |
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| Keywords: | curved box girder bridge shear lag effect interspaces-span matrix node matrix transfer matrix method |
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