Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects

DU Jianhua; ZHANG Xiaoliang; SHEN Hongyun; LU Mengyu; YIN Shiping

doi:10.3724/j.gyjzG22051602

Volume 55 Issue 2

Feb. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(2): 121-129

DU Jianhua, ZHANG Xiaoliang, SHEN Hongyun, LU Mengyu, YIN Shiping. Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 121-129. doi: 10.3724/j.gyjzG22051602

Citation:

DU Jianhua, ZHANG Xiaoliang, SHEN Hongyun, LU Mengyu, YIN Shiping. Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 121-129. doi: 10.3724/j.gyjzG22051602

Citation:

DU Jianhua, ZHANG Xiaoliang, SHEN Hongyun, LU Mengyu, YIN Shiping. Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 121-129. doi: 10.3724/j.gyjzG22051602

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Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects

doi: 10.3724/j.gyjzG22051602

1. Shijiazhuang Institute of Railway Technology, Shijiazhuang 050000, China;
2. Application Technology R&D Center of Bridge and Tunnel Intelligent Construction of Hebei Colleges, Shijiazhuang 050000, China;
3. Intelligent Control Technology Innovation Center for Bridge and Tunnel Engineering Construction of Hebei Province, Shijiazhuang 050000, China;
4. China Railway Construction Yunnan Investment Co., Ltd., Kunming 650000, China;
5. Heibei Jiaotong Vocational and Technical College, Shijiazhuang 050000, China;
6. Jiangsu Key Laboratory of Disaster Impact and Intelligent Prevention in Civil Engineering, School of Mechanics & Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received Date: 2022-05-16
Available Online: 2025-04-02

Abstract

Abstract

In order to analyze the influence of the arrangement of diaphragms on the bridge, a solid model was established by using the finite element software. According to the parameters of the bridge itself, such as warping deformation, distortion stress and torsional stress, the torsion and distortion effects of the corrugated steel web bridges with different spacings and numbers of diaphragm plates were analyzed in detail by changing the form of loads. The results showed that the roof was subjected to the maximum stress under the eccentric concentrated load, and the maximum torsional stress was only 40% of the maximum distortion stress. The anti-distortion capacity of a section was mainly determined by the distance between the two nearest diaphragms. The location of the diaphragm was not proportional to the torsion resistance of the section. Compared with the distortion load, the stress mutation at the diaphragm was more obvious under torsional loads. Compared with the longitudinal warping displacement, the setting of diaphragms had more significant effect on the transverse warping displacement of the bridge. The installation of diaphragm in the middle span had great influence on the anti-distortion capability of the bridge.
- box girder with variable cross section,
- diaphragm plate,
- FE analysis,
- torsional effect

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References

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