| 斜支承曲线梁桥内力影响因素分析 |
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| 引用本文： | 张元海,李乔.斜支承曲线梁桥内力影响因素分析[J].铁道学报,2005,27(5):77-82. |
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| 作者姓名： | 张元海 李乔 |
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| 作者单位： | 1. 兰州交通大学,土木工程学院,甘肃,兰州,730070;西南交通大学,土木工程学院,四川,成都,610031
2. 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 兰州交通大学“青蓝”人才工程基金资助(QL-2004-16) |
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| 摘 要： | 为了深入了解斜支承曲线梁桥的受力性能,基于结构力学的力法原理,推导了任意斜度的斜支承曲线梁桥的内力计算公式。以这些公式为依据,编制了相应电算程序,详细分析了荷载作用位置、荷载类型、弯扭刚度比、斜度、圆心角等因素对斜支承曲线梁桥受力性能的影响。绘制的大量曲线清晰地显示了各项因素对斜支承曲线梁桥受力性能的影响规律。
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| 关 键 词： | 曲线桥 斜交桥 受力性能 影响因素 弯扭刚度比 斜度 |
| 文章编号： | 1001-8360（2005）05-0077-06 |
| 收稿时间： | 2004-09-13 |
| 修稿时间： | 2005-02-02 |
Influential Factor Analysis for Internal Forces of Skew Curved Beam Bridges |
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| ZHANG Yuan-hai,LI Qiao.Influential Factor Analysis for Internal Forces of Skew Curved Beam Bridges[J].Journal of the China railway Society,2005,27(5):77-82. |
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| Authors: | ZHANG Yuan-hai LI Qiao |
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| Institution: | 1. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | In order to have further study on the mechanical behavior of skew curved beam bridges, the formulas for internal forces of skew curved beam bridges with arbitrary degrees of skew are derived by applying the principle of force-method in structural mechanics. The corresponding computing program is developed by means of the derived formulas. The influence of load the position, load type, ratio of bending and torsion stiffness, degree of skew, central angle, etc. On the mechanical behavior of skew curved beam bridges is analyzed in detail. A large number of curve diagrams drawn herein show clearly the influence of all factors on the behavior of skew curved beam bridges. |
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| Keywords: | curved bridges skew bridges mechanical behavior influential factor ratio of bending and torsion stiffness degree of skew |
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