| 体外预应力箱梁桥转向块受力性能分析 |
| |
| 引用本文： | 林峰,李波.体外预应力箱梁桥转向块受力性能分析[J].现代交通技术,2012,9(2):41-43. |
| |
| 作者姓名： | 林峰 李波 |
| |
| 作者单位： | 1. 东南大学建筑设计研究院,江苏南京,210096
2. 江苏省交通规划设计院股份有限公司,江苏南京,210005 |
| |
| 摘 要： | 转向块是体外后张预应力桥梁一个特别的设计,体外预应力筋通过转向块改变方向从而形成预应力折线配束,但其结构形式不规则,应力状态较为复杂。文章通过对一肋式转向块进行实体有限元模拟仿真分析,揭示了转向块的受力特性,并对其设计提出了相关的建议。
|
| 关 键 词： | 桥梁工程 体外预应力 转向块 应力状态 实体有限元 |
Analysis of Mechanical Performance of Deviators in Externally Prestressed Box-girder Bridges |
| |
| Lin Feng,Li Bo.Analysis of Mechanical Performance of Deviators in Externally Prestressed Box-girder Bridges[J].Modern Transportation Technology,2012,9(2):41-43. |
| |
| Authors: | Lin Feng Li Bo |
| |
| Institution: | 1.Architectural Design ＆ Research Institute of Southeast University,Nanjing 210096,China; 2.Jiangsu Provincial Communication Planning and Design Institute Co.,Ltd.,Nanjing 210005,China) |
| |
| Abstract: | The deviator is a special design of externally prestressed box-girder bridges.Externally prestressed tendons change direction through deviators,so that prestressed tendons of polygonal line can form.However,stress state of the deviator is complicated because of its irregularity.This article analyzes one rib deviator with solid finite element models to reveal its mechanical characteristics,and puts forward some suggestions on its design. |
| |
| Keywords: | bridge engineering external prestress deviator stress state solid finite element |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《现代交通技术》浏览原始摘要信息 |
| 点击此处可从《现代交通技术》下载免费的PDF全文 |
|
