Wind Tunnel Test Study on Pipeline Suspension Bridge via Aeroelastic Model with π Connection

Li, G. H.; Wang, W. J.; C., X.; Zuo, Leibin; Wang, F. B.; Li, T. Z.

doi:10.1061/(asce)ps.1949-1204.0000333

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…e test was conducted in the Industrial Wind Tunnel (XNJD-3) of Southwest Jiaotong University, as shown in Figure 9. e dynamic response of Shock and Vibration the model was measured by the forced oscillation method [14]. Two laser displacement sensors were used to obtain the vibration signal in the test.…”

Section: Suspension Bridge Fe Model Verificationmentioning

confidence: 99%

“…However, this approach requires a long period and is easily affected by environmental conditions. Li et al [14], Chen et al [15], and Li et al [16] investigated the wind characteristics of different bridge sites through wind tunnel tests to provide a basis for bridge design. Although this method is not affected by the geographical environment, accurate models must be built, and the cost can be extremely expensive.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wind‐Induced Vibration Response of an Inspection Vehicle for Main Cables Based on Computer Simulation

Zhang

Wang

Guo

et al. 2019

Shock and Vibration

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This paper presents a simulation approach based on the finite element method (FEM) to analyze the wind-induced vibration response of an inspection vehicle for main cables. First, two finite element (FE) models of a suspension bridge and a main cable-inspection vehicle coupled system are established using MIDAS Civil software and ANSYS software, respectively. Second, the mean wind speed distribution characteristics at a bridge site are analyzed, and the wind field is simulated based on the spectral representation method (SRM). Third, a modal analysis and a wind-induced vibration response transient analysis of the suspension bridge FE model are completed. Fourth, the vibration characteristics of the inspection vehicle are analyzed by applying fluctuating wind conditions and main cable vibration displacements in the main cable-inspection vehicle coupled FE model. Finally, based on the ISO2631-1-1997 standard, a vehicle ride comfort evaluation is performed. The results of the suspension bridge FE modal analysis are in good accordance with those of the experimental modal test. The effects of the working height, number of nonworking compressing wheels, and number of nonworking driving wheels during driving are discussed. When the average wind speed is less than 13.3 m/s, the maximum total weighted root mean square acceleration (av) is 0.1646 m/s2 and the vehicle ride comfort level is classified as “not uncomfortable.” This approach provides a foundation for the design and application of inspection vehicles.

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Section: Suspension Bridge Fe Model Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wind‐Induced Vibration Response of an Inspection Vehicle for Main Cables Based on Computer Simulation

Zhang

Wang

Guo

et al. 2019

Shock and Vibration

View full text Add to dashboard Cite

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“…However, the common cross-sections of the core beams are various, such as rectangular, circular, U-shaped and π-shaped sections [31][32][33], the ranges of the section geometric parameters are ambiguous. It is difficult to obtain an analytical solution of the torsion constant.…”

Section: Introductionmentioning

confidence: 99%

“…At present, the trial-and-error method is commonly used to determine the section parameters of the core beam, which is complex, is tedious and has low accuracy. The U-shaped crosssection has been the most widely used for core beams of bridge decks, and the rectangular section is generally used for the core beams of bridge towers [33].…”

Section: Introductionmentioning

confidence: 99%

Research on Effective Design Methods of Core Beam of Full Bridge Aeroelastic Model

Qie

Zhang

et al. 2023

Applied Sciences

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The trial-and-error method is complex and tedious, but often adapted to determine the cross-section sizes of core beams in the design of reduced-scale models. In this study, two optimization methods, the optimization methods in ANSYS and the genetic algorithm, are investigated to optimize the cross-section sizes of core beams of reduced-scale models, which centers around two targeted moments of inertia and a targeted torsion constant. Due to the difficulty of obtaining an analytical solution of the torsion constant, a series of numerical solutions are proposed. Then, taking a U-shaped cross section as an example, the four geometric sizes of the section are optimized by the ANSYS optimization method and the genetic algorithm, respectively. The results of both methods are in good agreement with the targeted values, but the ANSYS optimization method is prone to fall into the local optimization zone and hence could be easily affected by the initial values. The shortcomings of the ANSYS optimization method can be easily avoided by the genetic algorithm, and it is easier to reach the global optimal solution. Finally, taking a suspension bridge with a main span of 920 m as a prototype, the full-bridge aeroelastic model is designed and the genetic algorithm is used to optimize the cross-section sizes of core beams in the bridge tower and the deck. Natural frequencies identified from the aeroelastic model agree well with the target ones, indicating the structural stiffness, which is provided by the core beams, has been modelled successfully.

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Experimental research on the aerodynamic responses of a long-span pipeline suspension bridge

Fei

et al. 2021

Engineering Structures

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Wind Tunnel Test Study on Pipeline Suspension Bridge via Aeroelastic Model with π Connection

Cited by 6 publications

References 8 publications

Wind‐Induced Vibration Response of an Inspection Vehicle for Main Cables Based on Computer Simulation

Wind‐Induced Vibration Response of an Inspection Vehicle for Main Cables Based on Computer Simulation

Research on Effective Design Methods of Core Beam of Full Bridge Aeroelastic Model

Experimental research on the aerodynamic responses of a long-span pipeline suspension bridge

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