Free vibration characteristics and experiment study of composite box girder with corrugated steel webs

ZHANG Yong-jian; HUANG Ping-ming; DI Jin; ZHOU Xu-hong

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ZHANG Yong-jian, HUANG Ping-ming, DI Jin, ZHOU Xu-hong. Free vibration characteristics and experiment study of composite box girder with corrugated steel webs[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 76-80.

Citation:

ZHANG Yong-jian, HUANG Ping-ming, DI Jin, ZHOU Xu-hong. Free vibration characteristics and experiment study of composite box girder with corrugated steel webs[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 76-80.

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Free vibration characteristics and experiment study of composite box girder with corrugated steel webs

1.
Hunan Provincial Expressway Administration Bureau, Changsha 410001, Hunan, China
2.
School of Highway, Chang'an Universiy, Xi'an 710064, Shaanxi, China
3.
School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, Gansu, China

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Author Bio:
ZHANG Yong-jian (1978-), male, engineer, PhD, +86-743-8717373, manzyj@126.com
Received Date: 2008-03-12
Publish Date: 2008-10-25

Abstract

Abstract

In order to accurately calculate the vibration frequency of composite box girder with corrugated steel webs, the formula about the natural frequencies was deduced based on energy variational principle, and the analytical solution was obtained according to the effects of shear lag and shear deformation.The natural frequencies of a model were tested, and were compared with the results of simply beam theory, the theoretical formula and 3D finite element model.Comparison result shows that the effects of shear lag and shear deformation to vibration frequency are obvious, the frequencies of composite box girder with corrugated steel webs will decrease when the effects are taken into consideration, and the effects increase sharply with the increase of frequency order, so the effects can not be neglected in the frequency calculation.
- bridge engineering,
- composite box girder with corrugated steel web,
- shear lag effect,
- shear deformation,
- variational principle

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References(10)

References

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