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| 横撑布置方式对钢管混凝土拱桥动力特性的影响 | |
| 引用本文： | 文峰,李寿英,刘慕广,段树金.横撑布置方式对钢管混凝土拱桥动力特性的影响[J].国防交通工程与技术,2007,5(2):43-45. |
| 作者姓名： | 文峰 李寿英 刘慕广 段树金 |
| 作者单位： | 1. 东南大学建筑设计研究院,江苏,南京,210096 2. 湖南大学风工程试验研究中心,湖南,长沙,410082 3. 石家庄铁道学院土木工程分院,河北,石家庄,050043 |
| 摘 要： | 通过建立钢管混凝土拱桥有限元模型,详细研究了横撑布置方式对钢管混凝土拱桥动力特性的影响,结果表明:钢管混凝土拱桥主拱面外基频低于面内基频;横撑变化对其面外频率影响较大,但对面内频率几乎无影响;拱顶横撑与1/4跨处横撑对主拱的动力特性影响较大,拱脚横撑对主拱动力特性的影响不明显。 |
| 关 键 词： | 钢管混凝土 拱桥 横撑布置 动力特性 |
| 文章编号： | 1672-3953（2007）02-0043-03 |
| 修稿时间： | 2007-01-15 |
Effects of Transverse Brace Arrangements on the Dynamic Characteristics of CFST Arch Bridges |
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| WEN Feng,LI Shou-ying,LIU Mu-guang,DUAN Shu-jin.Effects of Transverse Brace Arrangements on the Dynamic Characteristics of CFST Arch Bridges[J].Traffic Engineering and Technology for National Defence,2007,5(2):43-45. | |
| Authors: | WEN Feng LI Shou-ying LIU Mu-guang DUAN Shu-jin |
| Abstract: | In the light of the finite element model,the influence of different transverse brace arrangements on the dynamic characteristics of CFST arch bridges is studied in the paper.The results show that the basic modal frequency of out-plane is lower than that of in-plane,and the frequencies of out-plane are seriously influenced by the change in the transverse brace arrangements while the frequencies of in-plane are little influenced;furthermore,the transverse braces at arch crown and 1/4 span have a remarkable effect on the dynamic characteristics of the main arch,but the effect of the transverse braces located at arch springing is not so marked. |
| Keywords: | CFST arch bridge transverse brace arrangement dynamic characteristics |
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