[1] Ma WengangHuang QiaoChen XiaoqiangRen Yuan,. Mechanical performance evaluation of a new type ofcable-stayed beam-arch combination bridge based on field tests [J]. Journal of Southeast University (English Edition), 2012, 28 (1): 64-72. [doi:10.3969/j.issn.1003-7985.2012.01.012]

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Mechanical performance evaluation of a new type ofcable-stayed beam-arch combination bridge based on field tests()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

28

Issue:

2012 1

Page:

64-72

Research Field:

Traffic and Transportation Engineering

Publishing date:

2012-03-30

Info

Title:

Mechanical performance evaluation of a new type ofcable-stayed beam-arch combination bridge based on field tests

Author(s):

Ma WengangHuang QiaoChen XiaoqiangRen Yuan

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

arch bridge;  cable-stayed bridge;  vertical load;  field test;  three-dimensional model

PACS:

U443.38;U448.27

DOI:

10.3969/j.issn.1003-7985.2012.01.012

Abstract:

In order to study the mechanical performance of a new type of cable-stayed beam-arch combination bridge, the results of field static and dynamic load tests are comparatively analyzed with numerical results based on the Jingyi bridge straddling the Daxi River in Yixing. First, the test scheme, tasks, the corresponding measure method, as well as the relevant codes are described. Secondly, two sets of three-dimensional finite element models are established. One is Ansys which uses the solid element and the other is Midas which adopts the beam element. Finally, the experimental and analytical results are comparatively analyzed, and they show an agreement with each other. The results show that the bridge possesses adequate load-carrying capacity under all static load cases, but the capacity of dissipating external input energy is insufficient due to the relatively smaller damping ratio. The study results can provide a reference for further study and optimization of this type of bridge. Calibrated finite-element models that reflect the real conditions can be used as a baseline for future maintenance of the bridge.

References:

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Memo

Memo:

Biographies: Ma Wengang(1980—), male, graduate; Huang Qiao(corresponding author), male, doctor, professor, qhuanghit@126.com.
Citation: Ma Wengang, Huang Qiao, Chen Xiaoqiang, et al. Mechanical performance evaluation of a new type of cable-stayed beam-arch combination bridge based on field tests[J].Journal of Southeast University(English Edition), 2012, 28(1):64-72.[doi:10.3969/j.issn.1003-7985.2012.01.012]

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