| 箱梁横梁缺陷对斜交桥动力特性影响 |
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| 引用本文： | 石东艳,龙建旭.箱梁横梁缺陷对斜交桥动力特性影响[J].交通科技与经济,2011,13(4):11-13. |
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| 作者姓名： | 石东艳 龙建旭 |
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| 作者单位： | 1. 贵州大学土木建筑工程学院,贵州贵阳,550008
2. 贵州交通职业技术学院建工,贵州贵阳,550008 |
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| 基金项目： | 贵州省交通运输厅科技项目(2010-021-048) |
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| 摘 要： | 采用频谱分析法对桥梁进行动力测试,得出由于该桥预制横梁斜交角度不足,从而引起桥梁动力特性发生变化。通过脉动测试桥梁实际工作时与设计基准频率时的动力特性,对比发现动力特性能较好反映成桥的缺陷,且横梁缺陷对桥梁竖向频率影响不大。
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| 关 键 词： | 成桥荷载实验 扰度 承载力 |
Box Girder Defects on the Dynamic Characteristics of the Skew Bridge |
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| SHI Dong-yan,LONG Jian-xu.Box Girder Defects on the Dynamic Characteristics of the Skew Bridge[J].Technology & Economy in Areas of Communications,2011,13(4):11-13. |
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| Authors: | SHI Dong-yan LONG Jian-xu |
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| Institution: | SHI Dong-yan1,LONG Jian-xu2(1.Guizhou University,Civil Architectural Engineering Institute,Guiyang 550008,China,2.Guizhou Communication Polytechnic,China) |
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| Abstract: | The construction elements of a bridge defects in dynamic testing,using spectrum analysis.Precast bridge beams by the lack of oblique angle,causing the bridge dynamic characteristics change.Through the fluctuation test,will be the actual working conditions under the bridge dynamic characteristics and the design basis to compare the frequency and found that can reflect the dynamic characteristics of the defects into the bridge,and bridge beams on the vertical frequency of defects had little effect. |
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| Keywords: | into bridge load experiment flexibility bearing capacity |
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