Journal Home > Volume 1 , Issue 2
Journal of Intelligent Construction 2023, 1(2): 9180013 https://doi.org/10.26599/JIC.2023.9180013
Research Article | Open Access | Issue | Published: 18 July 2023

Structural stiffness evaluation of suspension bridge based on monitoring data

Show Author's Information Wencheng Xu1,2,3( ),  Shufeng Guo3,  Shiqian Yao2,3
Southwest Jiaotong University School of Civil Engineering, Chengdu 611756, China
CCCC Engineering Big Data Information Technology (Beijing) Co., Ltd., Beijing 100088, China
CCCC Highway Consultants Co., Ltd., Beijing 100088, China
Keywords:
finite element model, bridge engineering, suspension bridge, structural stiffness assessment, monitoring data
Cite this article:
Xu W, Guo S, Yao S. Structural stiffness evaluation of suspension bridge based on monitoring data. Journal of Intelligent Construction, 2023, 1(2): 9180013. https://doi.org/10.26599/JIC.2023.9180013
Download citation
EndNote(RIS)
BibTeX

1484

Views

264

Downloads

Citations

1

Crossref

N/A

WoS

N/A

Scopus

N/A

CSCD

Abstract Full text About this article

For long-span suspension bridges, the structural deformation is significantly influenced by the environment. Therefore, evaluating the structural stiffness of suspension bridges is crucial. This paper takes a certain long-span suspension bridge over the sea as an example to discuss different methods for evaluating the structural stiffness of suspension bridges. A three-dimensional finite element model is established, and influential lines at key locations are extracted. The fitting accuracy of vertical deformation and environmental temperature data under different time windows is analyzed based on global positioning system (GPS) deformation monitoring data. Furthermore, the spatial distribution of the maximum and minimum values of bridge deformation caused by vehicle loads is statistically analyzed. The results indicate that the displacement extreme value coefficient at the mid-span of the suspension bridge is relatively large compared to those of other locations. The measured displacement envelope curves are within the theoretical envelope curves, demonstrating good overall stiffness performance of the bridge. The research methodology in this paper accurately evaluates the overall structural stiffness of the suspension bridge, providing strong support for ensuring the safe operation of the bridge.


menu
Abstract
Full text
Outline
About this article

Structural stiffness evaluation of suspension bridge based on monitoring data

Show Author's information Wencheng Xu1,2,3( ), Shufeng Guo3, Shiqian Yao2,3
Southwest Jiaotong University School of Civil Engineering, Chengdu 611756, China
CCCC Engineering Big Data Information Technology (Beijing) Co., Ltd., Beijing 100088, China
CCCC Highway Consultants Co., Ltd., Beijing 100088, China

Abstract

For long-span suspension bridges, the structural deformation is significantly influenced by the environment. Therefore, evaluating the structural stiffness of suspension bridges is crucial. This paper takes a certain long-span suspension bridge over the sea as an example to discuss different methods for evaluating the structural stiffness of suspension bridges. A three-dimensional finite element model is established, and influential lines at key locations are extracted. The fitting accuracy of vertical deformation and environmental temperature data under different time windows is analyzed based on global positioning system (GPS) deformation monitoring data. Furthermore, the spatial distribution of the maximum and minimum values of bridge deformation caused by vehicle loads is statistically analyzed. The results indicate that the displacement extreme value coefficient at the mid-span of the suspension bridge is relatively large compared to those of other locations. The measured displacement envelope curves are within the theoretical envelope curves, demonstrating good overall stiffness performance of the bridge. The research methodology in this paper accurately evaluates the overall structural stiffness of the suspension bridge, providing strong support for ensuring the safe operation of the bridge.

Keywords: finite element model, bridge engineering, suspension bridge, structural stiffness assessment, monitoring data

References(17)

[1]
X. G. Hua, Z. W. Huang, Z. Q. Chen. Multi-mode vertical vortex-induced vibration of suspension bridges and control strategy. China J Highw Transp, 2019, 32: 115–124. (in Chinese)
[2]
Y. Zhang, S. G. Cao, R. J. Ma, et al. Dynamic monitoring and prediction for vortex induced vibration of a sea crossing bridge. J Vib Shock, 2020, 39: 143–150. (in Chinese)
[3]

X. Qin, M. Z. Liang, X. L. Xie, et al. Mechanical performance analysis and stiffness test of a new type of suspension bridge. Front Struct Civ Eng, 2021, 15: 1160–1180.
DOI Google Scholar
[4]
Q. H. Zhang, Y. Zhang, Z. Y. Cheng, et al. Static behavior and key influencing factors of double-cable suspension bridge. J Southwest Jiaotong Univ, 2020, 55: 238–246. (in Chinese)
[5]

G. Zamiri, S. R. Sabbagh-Yazdi. Nonlinear aerostatic analysis of long-span suspension bridge by element free galerkin method. Wind Struct, 2020, 31: 75–84.
DOI Google Scholar
[6]
F. P. Zhang. Research on practical finite element analysis method of suspension bridges based on deflection theory. Master Thesis, Ji’nan, China: Shandong University, 2020. (in Chinese)
[7]

Z. L. Zhou, S. Keller. Improving convergence by optimizing the condition number of the stiffness matrices arising from least-squares finite element methods. Comput Methods Appl Mech Eng, 2021, 385: 114023.
DOI Google Scholar
[8]
Y. J. Guo, H. L. Wu, W. Li, et al. Model order reduction for nonlinear dynamic analysis of parameterized curved beam structures based on isogeometric analysis. Eng Mech, 2022, 39: 31–48. (in Chinese)
[9]
C. C. Zheng, H. Z. Xiang, Y. Q. Chen, et al. Vortex-induced vibration response and vibration control of super-span suspension bridge. Sci Technol Eng, 2022, 22: 8103–8109. (in Chinese)
[10]
Y. Zhou, Y. Chen, Y. Xia. Monitoring and analysis of thermal deformation in long-span suspension bridges. J Huazhong Univ Sci Technol, 2022, 50: 117–123. (in Chinese)
[11]
N. Jiang, R. L. Shen. Influence of rise-span ratio on structural stiffness of suspension bridge. China Civ Eng J, 2013, 46: 90–97. (in Chinese)
[12]
F. Y. Tu, X. F. Zhang. Analysis of the influence of cable stiffness on static performance of a ground anchored suspension bridge. Western China Commun Sci Technol, 2022: 178–180. (in Chinese)
[13]
H. Liu, Z. Zhu. Static performance of long-span suspension bridge based on uniform test parameter sensitivity analysis. Highw Automot Appl, 2020: 125–128, 134. (in Chinese)
[14]
L. P. Xu, X. J. Huo. Study on stiffness of super-long span rail-cum-road suspension bridge under live load. Railw Eng, 2021, 61: 5–8, 37. (in Chinese)
[15]
J. C. Chen, J. Q. Lei, L. Jin, et al. Study on structure characteristics and stiffness indexes of thousand-meter-scale road–rail suspension bridges. Railw Stand Des, 2022, 66: 54–61. (in Chinese)
[16]
H. Y. Cao, Z. J. Chen, Q. Y. Wu, et al. Simplified calculation model for multi-span suspension bridges based on single cable theory. China J Highw Transp, 2016, 29: 77–84. (in Chinese)
[17]
W. Peng, J. B. Wang, Y. Jin. A large span based on load test and monitoring system. Highw Traffic Technol, 2020, 16: 207–210. (in Chinese)
Publication history
Copyright
Rights and permissions

Publication history

Received: 06 June 2023
Revised: 15 June 2023
Accepted: 17 June 2023
Published: 18 July 2023
Issue date: June 2023

Copyright

© The Author(s) 2023. Published by Tsinghua University Press.

Rights and permissions

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Return