中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (3): 41-43.

• • 上一篇    下一篇

共振法测试拱式体系动力特性分析

周兵,施尚伟   

  1. 重庆交通大学桥梁结构工程交通行业重点实验室,重庆 400074
  • 收稿日期:2006-02-28 修回日期:2015-05-18 出版日期:2007-06-15 发布日期:2015-05-18
  • 作者简介:周兵(1968—),男,重庆市人,工程师,从事桥梁工程实验教学和工程检测工作

Analysis of Arch Bridge Dynamic Properties by Resonant Vibration

ZHOU Bing,SHI Shang-wei   

  1. Bridge Structural Engineering Key Lab of Traffic Industry,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2006-02-28 Revised:2015-05-18 Online:2007-06-15 Published:2015-05-18

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Ff’I'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

Abstract: Based on the resonant tests with running and braking trucks on the main span of Chongqing Tongliang County Zhu-bao 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.

Key words: resonant vibration, dynamic properties, analysis

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