| 索-拱体系横向屈曲临界荷载的实用计算 |
| |
| 引用本文： | 艾永明,杨炳成,黄平明. 索-拱体系横向屈曲临界荷载的实用计算[J]. 吉林大学学报(工学版), 2010, 40(1): 63-0066 |
| |
| 作者姓名： | 艾永明 杨炳成 黄平明 |
| |
| 作者单位： | 长安大学,公路学院,西安,710064 |
| |
| 基金项目： | 湖北省交通科研计划项目（2004343-1203） |
| |
| 摘 要： | 在圆弧拱横向失稳临界荷载研究的基础上,考虑拉索作用,采用能量原理法提出了索-拱体系横向失稳临界荷载的实用计算式,并用有限元法验证了其正确性,最后探讨了拉索对索-拱体系横向稳定性的影响。结果表明:拉索施加预应力、拉索越短及拉索面积越大均有利于索拱体系的横向稳定性。
|
| 关 键 词： | 桥梁工程 索-拱体系 横向屈曲 临界荷载 能量原理法 |
| 收稿时间： | 2009-05-07 |
Practical calculation of critical lateral flexure load of cable-arch systems |
| |
| AI Yong-ming,YANG Bing-cheng,HUANG Ping-ming. Practical calculation of critical lateral flexure load of cable-arch systems[J]. Journal of Jilin University:Eng and Technol Ed, 2010, 40(1): 63-0066 |
| |
| Authors: | AI Yong-ming YANG Bing-cheng HUANG Ping-ming |
| |
| Affiliation: | College of Highway,Chang'an University,Xi'an 710064,China |
| |
| Abstract: | Based on the study of the lateral unstability of the arc arch, using the energy principle method, and considering the action of the stay cable, a practical expression was derived to calculate the critical lateral flexure load of the cable-arch system. The correctness of the expression was verified by the finite element method. The effect of the stay cable on the lateral stability of the cable-arch system was discussed. Results show that prestressing and shortening the cable, as well as increasing the cable cross area result in enhancement of the lateral stability of the cable-arch system. |
| |
| Keywords: | bridge engineering cable-arch system lateral flexure critical load energy principle method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《吉林大学学报(工学版)》浏览原始摘要信息 |
|
点击此处可从《吉林大学学报(工学版)》下载全文 |
|
