| 静风荷载对大跨度钢管砼拱桥施工稳定性的影响 |
| |
| 引用本文： | 王元清,姜波,张勇,石永久.静风荷载对大跨度钢管砼拱桥施工稳定性的影响[J].重庆交通学院学报,2007,26(4):46-50. |
| |
| 作者姓名： | 王元清 姜波 张勇 石永久 |
| |
| 作者单位： | 清华大学土木工程系清华大学结构工程与振动教育部重点实验室 北京100084(王元清，姜波，石永久)，北方交通大学土木建筑工程学院 北京100044(张勇) |
| |
| 基金项目： | 北京市自然科学基金项目(8053021)资助 |
| |
| 摘 要： | 目前对施工过程中静风荷载对钢管砼拱桥整体稳定性的研究还不多,通过一个工程实例在这方面做了一些研究.通过有限元分析,结果证明风速越大,整体稳定安全系数越低;风荷载较小时对稳定性影响不明显,当风速超过一个定值以后,影响效果非常明显.风荷载作用下,同时考虑材料非线性以后,荷载稳定安全系数降低较大;风荷载作用下,考虑双重非线性比考虑材料非线性的稳定安全系数有所降低,但是降低幅度不大.
|
| 关 键 词： | 钢管砼拱桥 施工 稳定性 风荷载 |
| 文章编号： | 1001-716X（2007）04-0046-05 |
| 收稿时间： | 2006-05-24 |
| 修稿时间： | 2006-07-03 |
Influences of Wind Load on the Stability of Concrete Filled Steel Tube Arch Bridge in Construction |
| |
| WANG Yuan-qing ,JIANG Bo, ZHANG Yong ,SHI Yong-jiu.Influences of Wind Load on the Stability of Concrete Filled Steel Tube Arch Bridge in Construction[J].Journal of Chongqing Jiaotong University,2007,26(4):46-50. |
| |
| Authors: | WANG Yuan-qing JIANG Bo ZHANG Yong SHI Yong-jiu |
| |
| Abstract: | There is little research on the wind-induced lateral torsional buckling stability problem for long-span concrete-filled steel tube arch bridge.Through a practical bridge,the stability of CFST arch bridge suffered wind load was analyzed.The results show that the stronger the wind rapidity is,the smaller the coefficients of stability is,and weak wind have little influence on the stability,but the strong wind affects greatly on the stability of the structure,and the nonlinear considered under the analysis of stability of CFST arch bridge in construction is better,and the material nonlinear has a greater influences on the stability of the bridge than the geometrical nonlinear does. |
| |
| Keywords: | CFST arched bridge construction stability wind load |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
