| 共振法测试拱式体系动力特性分析 |
| |
| 引用本文： | 周兵,施尚伟.共振法测试拱式体系动力特性分析[J].重庆交通学院学报,2007,26(3):41-43,61. |
| |
| 作者姓名： | 周兵 施尚伟 |
| |
| 作者单位： | 重庆交通大学桥梁结构工程交通行业重点实验室 重庆400074 |
| |
| 摘 要： | 以重庆铜梁县珠宝大桥为例,采用共振法对拱桥主跨进行跑车和刹车动力试验,测定结构的动挠度、动应变等动力响应参数,用时域法和FFT分析桥梁的固有频率、阻尼比等模态参数,根据动力响应和模态参数进行桥梁承载能力评定,达到为桥梁结构计算提供一个合理依据的目的.
|
| 关 键 词： | 共振法 动力特性 分析 |
| 文章编号： | 1001-716X（2007）03-0041-03 |
| 修稿时间： | 2006-02-28 |
Analysis of Arch Bridge Dynamic Properties by Resonant Vibration |
| |
| ZHOU Bing, SHI Shang-wei.Analysis of Arch Bridge Dynamic Properties by Resonant Vibration[J].Journal of Chongqing Jiaotong University,2007,26(3):41-43,61. |
| |
| Authors: | ZHOU Bing SHI Shang-wei |
| |
| Institution: | Bridge Structural Engineering Key Lab of Traffic Industry, Chongqing Jiaotong University, Chongqing 400074, China |
| |
| Abstract: | Based on the resonant tests with running and braking trucks on the main span of Chongqing Tongliang County Zhubao Arch Bridge,the dynamic parameters including deflections and stresses were acquired,and the structural free vibration frequencies and damping coefficients were analyzed through the time-domain method and Fast Fourier Transforms(FFT),and the bridge carrying capacity was evaluated according to its dynamic responses and modal parameters.Those provide the structural analysis with reasonable supports. |
| |
| Keywords: | resonant vibration dynamic properties analysis |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
