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| 体外预应力索索力计算的新方法 | |
| 引用本文： | 李传习,李德慧,贺玲凤. 体外预应力索索力计算的新方法[J]. 土木工程学报, 2005, 38(6): 54-58 |
| 作者姓名： | 李传习 李德慧 贺玲凤 |
| 作者单位： | 1. 长沙理工大学桥梁与结构工程学院;湖南大学土木工程学院 2. 长沙理工大学桥梁与结构工程学院 3. 华南理工大学交通学院 |
| 基金项目： | 广州市建设科技发展基金资助项目(200006)，湖南省交通科技基金资助项目 |
| 摘 要： | 根据滑动索段的无应力索长总和不变,考虑体外索与转向块相对滑动,考虑滑动摩擦系数与静摩擦系数不相等,提出了更准确的体外预应力索索力的计算方法,解决了现有方法计算体外索索力偏差可能较大的问题。算例给出了本文方法和现有主要方法的体外索索力计算结果及其偏差。 |
| 关 键 词： | 体外预应力梁 索力 转向块 滑动摩擦 静摩擦 |
| 文章编号： | 1000-131X(2005)06-0054-05 |
| 修稿时间： | 2004-02-02 |
A NEW METHOD OF ANALYSIS FOR THE FORCE OF THE EXTERNAL PRESTRESSED CABLES |
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| LI Chuanxi,Li DeHui,He Lingfeng. A NEW METHOD OF ANALYSIS FOR THE FORCE OF THE EXTERNAL PRESTRESSED CABLES[J]. China Civil Engineering Journal, 2005, 38(6): 54-58 | |
| Authors: | LI Chuanxi Li DeHui He Lingfeng |
| Affiliation: | Li Chuanxi 1 Li Dehui 1 He Lingfeng 2 |
| Abstract: | According to the fact that the total length of slipping stress-free cables remain constant this paper,presents a more precise method to analyze the force of external cables.Moreover,this method also considers several vital factors,including the relative slippage between the external cables and the deviators, and the difference between the static friction coefficients and the sliding.As a result, the proposed method is more advantageous than other methods in that the solutions are more precise.Examples are provided to show the results from this and other methods. |
| Keywords: | externally prestressed beams force of external cables deviator sliding friction static friction |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |