Failure mechanisms and seismic fragility analysis of overhead transmission lines incorporating pile-soil-structure interaction

Liu, Juncai; Meng, Xiangrui; Tian, Li; Jin, Qingtong; Dong, You; Yang, Meng; Liu, Kaiyue

doi:10.1016/j.engfailanal.2024.108201

Cited by 13 publications

(1 citation statement)

References 49 publications

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“…Various methods have been used to study the interaction of this pile-soil structure. The literature [1] presents a review of the seismic design and evaluation of diverse structures, highlighting the significance of integrating soil-structure interaction with depth-varying spatial effects. The literature [2] investigates the cyclic response mechanism of offshore wind turbines supported by piled jackets through the utilization of an aero-elastic model, enhanced with diverse pile-soil interaction models.…”

Section: Introductionmentioning

confidence: 99%

Research on the Postural Stability of Underwater Bottom Platforms with Different Burial Depths

Wei,

Li,

et al. 2024

Sensors

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The bottom platform is an important underwater sensor that can be used in communications, early warning, monitoring, and other fields. It may be affected by earthquakes, winds, waves, and other loads in the working environment, causing changes in posture and affecting its sensing function. Therefore, it is of practical engineering significance to analyze the force conditions and posture changes in the bottom platform. In order to solve the problem of postural stability of the underwater bottom platform, this paper establishes a fluid and structural simulation model of the underwater bottom platform. First, computational fluid dynamics (CFD) technology is used to solve the velocity distribution and forces in the watershed around the bottom platform under a 3 kn ocean current, where the finite element method (FEM) numerical calculation method is used to solve the initial equilibrium state of the bottom platform after it is buried. On this basis, this paper calculates the forces on the bottom platform and the posture of the bottom platform at different burial depths under the action of ocean currents. Additionally, the effects of different burial depths on the maximum displacement, deflection angle, and postural stability of the bottom platform are studied. The calculation results show that when the burial depth is greater than 0.6 m, and the deflection angle of the bottom platform under the action of the 3 kn sea current is less than 5°, the bottom platform can maintain a stable posture. This paper could be used to characterize the postural stability of underwater bottom platforms at different burial depths for the application of underwater sensors in ocean engineering.

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Section: Introductionmentioning

confidence: 99%

Research on the Postural Stability of Underwater Bottom Platforms with Different Burial Depths

Wei,

Li,

et al. 2024

Sensors

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Seismic Design of Structures by Sequential Quadratic Programming with Trust Region Strategy and Endurance Time Method

Feng

2024

KSCE J Civ Eng

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Typhoon-induced failure analysis of electricity transmission tower-line system incorporating microtopography

Meng,

Tian,

et al. 2024

Engineering Failure Analysis

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Failure mechanisms and seismic fragility analysis of overhead transmission lines incorporating pile-soil-structure interaction

Cited by 13 publications

References 49 publications

Research on the Postural Stability of Underwater Bottom Platforms with Different Burial Depths

Research on the Postural Stability of Underwater Bottom Platforms with Different Burial Depths

Seismic Design of Structures by Sequential Quadratic Programming with Trust Region Strategy and Endurance Time Method

Typhoon-induced failure analysis of electricity transmission tower-line system incorporating microtopography

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