| 预应力锚索框架内力计算的有限差分法 |
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| 引用本文： | 田亚护,刘建坤,张玉芳.预应力锚索框架内力计算的有限差分法[J].北京交通大学学报(自然科学版),2007,31(4):22-25. |
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| 作者姓名： | 田亚护 刘建坤 张玉芳 |
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| 作者单位： | 北京交通大学土木建筑工程学院 北京100044(田亚护，刘建坤)，铁道科学研究院深圳分院 广东518034(张玉芳) |
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| 摘 要： | 根据Winkler弹性地基模型,考虑在不同的锚固力、地基系数、抗弯刚度条件下,利用差分法对锚索框架的内力计算公式进行了推导,并根据静力平衡和横梁与竖肋的变形协调进行锚索力的分配,使计算结果更接近于实际情况.应用此方法对某工程实例进行计算,并把计算结果与现场实测结果进行比较,证明此方法可行性和适用性.
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| 关 键 词： | Winkler假定 锚索框架 有限差分法 边坡 预应力锚索框架 内力计算 有限差分法 Finite Difference Method Frame Cable Anchor Prestressed Force Calculation 比较 实测结果 工程实例 方法 应用 情况 分配 锚索力 协调进行 变形 横梁 |
| 文章编号： | 1673-0291（2007）04-0022-04 |
| 修稿时间： | 2005-12-06 |
Internal Force Calculation of Prestressed Anchor Cable Frame by Finite Difference Method |
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| TIAN Ya-hu,LIU Jian-kun,ZHANG Yu-fang.Internal Force Calculation of Prestressed Anchor Cable Frame by Finite Difference Method[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2007,31(4):22-25. |
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| Authors: | TIAN Ya-hu LIU Jian-kun ZHANG Yu-fang |
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| Institution: | 1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 2. Shenzhen Research Design Institute, China Academy of Railway Sciences, Guangdong 518034, China |
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| Abstract: | According to Winkler model,the formula of the internal force calculation of prestressed anchor cable frame with varied prestressing forces and foundation elastic modulus and flexural rigidities is given by finite difference method,and the prestressing force are decomposed along the directions of longitudinal beams and traverse beams according to harmonious deformations and static balance conditions in order that the calculation results are closer to the facts.An engineering case is calculated by this method,and the comparison between the calculation results and data from field tests shows that this method is more feasible and applicable. |
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| Keywords: | Winkler supposition pre-stressed anchor cable frame finite difference method slope |
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