Nonlinear cable-deck interaction vibrations of cable-stayed bridges

Shen, Gang; Macdonald, John H G; Coules, Harry

doi:10.1016/j.jsv.2022.117428

Cited by 8 publications

(2 citation statements)

References 25 publications

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“…Luongo et al started to extend the linear vibration study of the suspension cables to the geometric nonlinearities by utilizing the Galyokin method [10]. Subsequently, researchers used a variety of methods to study the free vibration, nonlinear periodic and semi-periodic vibration characteristics of suspension cables [11][12][13][14]. In this aspect of research, the first use of a multi-degree-of-freedom discrete model with a linear modal deviation function was Green's program applied to partial differential control equations and the use of multiple scaling methods to obtain the expected vibration response.…”

Section: Introductionmentioning

confidence: 99%

Coupled Vibration Analysis of Multi-Span Continuous Cable Structure Considering Frictional Slip

Tian,

2024

Applied Sciences

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As important load-bearing structures, suspension cables have been widely used in suspension bridges, engineering ropeways, cable suspension systems and other special equipment. Their dynamic problems have always been a research hotspot. Especially for complex cable systems such as engineering ropeways and cable lifting equipment, there will be moving loads acting on multi-span continuous friction-slip cable structures, resulting in nonlinear coupled vibration. Therefore, few scholars have studied how to calculate the nonlinear coupling vibration effect between such moving loads and multi-span continuous cables considering friction slip. Therefore, this paper proposes the use of the combination of the direct stiffness method and the Newmark-β integration method to solve the nonlinear system of equations of motion, which can be derived from the coupled vibration response between the moving load and the main cable. The corresponding calculation program is prepared. Combined with the dynamic load test and simulation results of engineering cases, the correctness and reasonableness of the coupled vibration equations and the program can be verified through comparative analysis. The results show that the calculation results of the self-programmed program are in good agreement with the dynamic load test results, in which the maximum error of the vertical displacement in the span is −4.40% and 0.86%, and the error of the static calculation reaches −13.90%. The impact effect is more obvious when hoisting the weight out of the pulling cable, in which the impact coefficient of the main cable can be up to 2.0. The impact coefficient of the deviation of the cable tower is 4.0. During the traveling process of the moving load, the vertical downward deflection of the main cable at the action point is the largest, and the upward deflection is in the region of 0.2~0.8L from the action point.

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Section: Introductionmentioning

confidence: 99%

Coupled Vibration Analysis of Multi-Span Continuous Cable Structure Considering Frictional Slip

Tian,

2024

Applied Sciences

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“…Consequently, research on all aspects of the design, structural analysis, construction, inspection, maintenance, damage detection, and rehabilitation of cable-stayed bridges has emerged as a contemporary and relevant focus within the field of bridge engineering [6]. The studies [7][8][9][10], among others, have significantly advanced the development of computational models for cable-stayed bridges, leading to a better understanding and design of these structures in terms of their static and dynamic performance.…”

Section: Introductionmentioning

confidence: 99%

Algorithms for Computer-Based Calculation of Individual Strand Tensioning in the Stay Cables of Cable-Stayed Bridges

Spasojević Šurdilović,

Živković,

Turnić

2024

Applied Sciences

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This paper introduces algorithms for computer-aided calculation, based on a proposed computational model for stay cables, decomposed from a bridge’s structural system. These algorithms determine the necessary tension forces and corresponding deformations in the cables for individual strand tensioning using lightweight hydraulic jacks. Two tensioning methods are discussed: the first involves single-cycle tensioning with varying force intensities, while the second employs multiple cycles by applying forces of constant intensity until achieving an equalization of forces in all strands of the cable. The efficiency of the proposed procedures is demonstrated through a numerical example.

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