Analysis of Wind-Induced Vibration of a Spoke-Wise Cable–Membrane Structure

Huang, Hua; Xian, Yaoqiang; Zhang, Wei; Guo, Mengxue; Yang, Kun; Xi, Kailin

doi:10.3390/jmse8080603

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…The shell element shell181, the solid element solid185, and the link element link8 are, respectively, adopted for simulating the steel structure, the concrete, and the prestressed reinforcement in the finite element model; the steel plate is mainly divided into rectangular grids, while the solid concrete is divided into hexahedral grids to ensure the calculation accuracy. The initial strain theory is employed for applying the prestress [18][19][20], and initial strain is set up for link8. In this paper, due to the complex model and large size, the entire structure is divided into 785 one-dimensional elements, 5,13,437 two-dimensional elements, and 1,191,776 three-dimensional solid elements.…”

Section: Element Selectionmentioning

confidence: 99%

Stress Analysis and Structural Optimization of Steel–Concrete Joint of Zhonghua Road Bridge in Liaocheng

Jin

Zhang

et al. 2023

Advances in Civil Engineering

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Based on Zhonghua Road Bridge in Liaocheng city, a single tower hybrid cable-stayed bridge, the stress of the steelconcrete joint of the girder is studied using the finite element method with the software MIDAS and ANSYS. The beam element model of the whole bridge is established in MIDAS CIVIL, from which the internal forces of the critical sections of the steel–concrete joint under six adverse conditions are obtained. Then, the results are applied in the refined solid-shell finite element model established in ANSYS. With the stress analysis, it is found that when the steel–concrete joint is used in the girder of the single tower cable-stayed bridge, both the compressive strength of concrete and the tensile strength of steel can be fully used, and the structural stiffness can be smoothly transferred through the two different materials in the joint, which makes the structural behavior more reasonable. The detailed stress analysis also shows that it is prone to generate considerable stress concentration at the corners and the connection between the steel lattice chamber and the pressure bearing plate, and the concentration can be avoided by local stiffening and smoothing of the chamfers. The sensitivity analysis of the web thickness in the joints and bearing plates showed that increasing the thickness of the intermediate web would lead to a moderate reduction in the stress of the web itself, while the stress in the steel member remained relatively constant. However, when the thickness of the bearing plate is increased from 60 to 80 mm, the stress of each part of the steel plate in the steel grid will be significantly reduced, and the maximum reduction can reach 48%. The improvement of concrete strength has little effect on the stress of the steel cell, and the C50 concrete strength grade used in the design is more reasonable.

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Section: Element Selectionmentioning

confidence: 99%

Stress Analysis and Structural Optimization of Steel–Concrete Joint of Zhonghua Road Bridge in Liaocheng

Jin

Zhang

et al. 2023

Advances in Civil Engineering

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“…The mechanical model of the trans mission line and the tower-line system based on the truss element is convenient for per forming various types of wind vibration and other static and dynamic analysis [6,7]. The mechanical model of the transmission line and tower-line system established using a cable element and beam element can consider the torsional and bending capacity of the trans mission line and then study complex wind vibration problems such as galloping [8][9][10][11][12][13] Scholars have examined the dynamic models of transmission lines and tower-line system The supporting suspension cables and transmission lines in TC-PTS are large-span, highly flexible spatial suspension structures, and are typical wind-sensitive structures. In addition, the structures have mechanical characteristics such as large deformation and small strain, and the geometric nonlinear effect is significant.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Finite Element Analysis and Fatigue Damage Assessment of Wind-Induced Vibration for the Tension Cable-Supported Power Transmission Structure

Li,

Wang,

Wang

et al. 2023

Buildings

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The tension cable-supported power transmission structure (TC-PTS) is a new type of power transmission structure suitable for mountainous terrain, and is sensitive to wind load. In this regard, a nonlinear finite element analysis model of wind-induced vibration is proposed for the TC-PTS, and the wind-induced vibration response of the structure is analyzed. Firstly, the tangent stiffness matrix of the three-dimensional truss element for the supporting suspension cable and transmission line, considering the geometric nonlinearity of structures, is derived through the relationship between the element elastic energy and its displacement. Subsequently, the element mass matrix and damping matrix of the supporting suspension cable and transmission line, as well as the element nodal load vector obtained from wind load equivalence, are given. Then, based on the nonlinear finite element theory, the nonlinear dynamic equation of wind-induced vibration is established for the TC-PTS and solved using the Newmark-β method combined with the Newton–Raphson iterative method. Furthermore, the rain-flow counting method and Miner’s linear fatigue cumulative damage theory were used for wind-induced fatigue damage assessment. Finally, a two-span TC-PTS was selected as an example, and the wind-induced nonlinear vibration and fatigue damage assessment were analyzed through the proposed model. The results show that the proposed model has high computational accuracy and efficiency. The first three order vibration modes of the supporting-conductor part of the two-span TC-PTS were antisymmetric vertical bending, symmetric side bending, and antisymmetric side bending. With the increase in wind speed and wind direction angle, the maximum lateral displacement and tension of the supporting suspension cable and transmission line increased, and their degree of increase showed a nonlinear trend. In terms of the wind-induced fatigue analysis results of TC-PTS, the fatigue damage at the end of the supporting-conductor suspension cable was greater than the fatigue damage at its midpoint. Compared to the fatigue damage at the midpoint of the conductor, the fatigue damage at the end of the conductor was less affected by the wind direction angle, and both were more significantly affected by the wind speed.

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Investigation on typhoon-induced aero-elastic response of membrane structures by wind tunnel test and numerical simulation

Li,

Lu,

Huang

et al. 2024

Journal of Building Engineering

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Analysis of Wind-Induced Vibration of a Spoke-Wise Cable–Membrane Structure

Cited by 5 publications

References 17 publications

Stress Analysis and Structural Optimization of Steel–Concrete Joint of Zhonghua Road Bridge in Liaocheng

Stress Analysis and Structural Optimization of Steel–Concrete Joint of Zhonghua Road Bridge in Liaocheng

Nonlinear Finite Element Analysis and Fatigue Damage Assessment of Wind-Induced Vibration for the Tension Cable-Supported Power Transmission Structure

Investigation on typhoon-induced aero-elastic response of membrane structures by wind tunnel test and numerical simulation

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