Analysis of the seismic collapse of a high-rise power transmission tower structure

Zheng, Huadong; Fan, Jian; Long, Xiaohong

doi:10.1016/j.jcsr.2017.03.005

Cited by 42 publications

(14 citation statements)

References 21 publications

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“…Failure Mode. Fracture behaviors of members involve a series of problems, such as the separation of particles, the redistribution of internal forces and masses, and the redefinition of topological relations of elements [25]. In order to simulate these behaviors in the analysis of the FPM, it is necessary to establish the fracture failure model.…”

Section: Yes Endmentioning

confidence: 99%

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Collapse Analysis of Transmission Tower Subjected to Earthquake Ground Motion

Long

Wang

Fan

2018

Modelling and Simulation in Engineering

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The collapse of transmission towers involves a series of complex problems, including geometric nonlinearity, material nonlinearity, dynamic nonlinearity, and the failure of members. Simulation of the process of collapse is difficult using traditional finite element method (FEM), which is generated from continuum and variation principle, whereas the finite particle method (FPM) enforces equilibrium on each point. Particles are free to separate from one another, which is advantageous in the simulation of the structural collapse. This paper employs the finite particle method (FPM) to simulate the collapse of a transmission steel tower under earthquake ground motions; the three-dimensional (3D) finite particle model using MATLAB and the 3D finite element model using ANSYS of the transmission steel tower are established, respectively. And the static and elastic seismic response analyses indicate that the results of the FPM agree well with those of the FEM. To simulate the collapse of the transmission steel tower, a failure criterion based on the ideal elastic-plastic model and a failure mode are proposed. Finally, the collapse simulation of the transmission steel towers subjected to unidirectional earthquake ground motion and the collapse seismic fragility analysis can be successfully carried out using the finite particle method. The result indicates that the transmission steel tower has better seismic safety performance and anticollapse ability.

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Section: Yes Endmentioning

confidence: 99%

“…There are 522 elements in the finite particle model by MATLAB. According to "Code for Design of Steel Structures" [25], the stability factor of the member related to its slenderness ratio can be obtained. To simplify the analysis process, the stability factor of all members is set as 0.88.…”

Section: Collapse Analysis Under Different Pgasmentioning

confidence: 99%

Collapse Analysis of Transmission Tower Subjected to Earthquake Ground Motion

Long

Wang

Fan

2018

Modelling and Simulation in Engineering

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“…Study on the dynamic response of the high-voltage tower induced by tunnel blast excavation can be found in literature [18][19][20][21][22]. For example, Moon et al [23] studied experimentally the seismic behavior of a specific connection between the structural members of the transmission tower.…”

Section: Introductionmentioning

confidence: 99%

Vibration Characteristic of High‐Voltage Tower Influenced by Adjacent Tunnel Blasting Construction

Duan

Lin

Lai

et al. 2019

Shock and Vibration

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e effects of tunnel blast excavation on the adjacent existing high-voltage tower are comprehensively studied for the Chashan highway tunnel project as a case study. To investigate the effect of blast-induced vibration from the tunnel on the adjacent existing tower, field tests and numerical simulations method were adopted to study the vibration velocity and vibration frequency of the existing tower. Moreover, the relationship between the transverse distance from the detonation center and the peak velocity is discussed in detail. e results showed that the peak velocity of the measuring point in tower foundation increases with the distance between the detonation center and tower foundation approaches, and the maximum velocity is appearing when detonation center is 0 m. Furthermore, the corresponding energy spectrum distributions of the existing tower under the effect of blast induced by vibration is also analyzed, and the main frequency of vertical vibration is generally higher than that of transverse vibration. On combining the peak velocity with the main frequency and the natural frequency of the tower, the safety evaluation of the blasting area is proposed, and the corresponding control measures of blasting vibration are put forward. A guideline for the blast safety zone is proposed based on vibration velocity, main frequency, and the quantity of explosive.

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“…Scholars have utilized the discrete element method, finite element method, and particle method to numerically simulate structural collapse and have achieved many favorable outcomes that have provided important help into the study of the continuous collapse mechanism [5][6][7]. Structure collapse, however, is an extremely complex process that involves dynamic nonlinearity of geometry and materials, element fracture, contact, collisions, and other problems.…”

Section: Introductionmentioning

confidence: 99%

“…0×107 psi E t = 1.0×106 psi  y = 3.0×10 4 psi  = 4.0×10 3 lb − s 2 /in 4 Cantilever beam subject to joint load at the free end. Load-displacement of beam free end (elastic).…”

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confidence: 99%

Finite Particle Method‐Based Collapse Simulation of Space Steel Frame Subjected to Earthquake Excitation

Long

Rong

et al. 2018

Shock and Vibration

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In the process of collapse failure of the space steel frame subjected to earthquake excitation, complex behaviors often are involved, including geometric nonlinearity, material nonlinearity, fracture, contact, and collisions. In view of the unique advantages of the finite particle method to analyze complex structural nonlinear problems, this paper utilized the finite particle method as the basic means of analysis and used MATLAB software for computational analysis. This paper first derived a finite particle method-based space steel frame model, conducted static analysis and dynamic response analysis under earthquake excitation, and compared findings with ANSYS analysis results to validate reliability. This paper established the fracture criterion and failure mode of a steel frame member. Theoretical derivation and numerical simulation indicate that the finite particle method is a feasible and effective way to simulate the collapse of space steel frame structures subjected to earthquake excitation. This method provides a new approach to study the collapse and anticollapse seismic design of space steel frame structures subjected to earthquake excitation.

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Analysis of the seismic collapse of a high-rise power transmission tower structure

Cited by 42 publications

References 21 publications

Collapse Analysis of Transmission Tower Subjected to Earthquake Ground Motion

Collapse Analysis of Transmission Tower Subjected to Earthquake Ground Motion

Vibration Characteristic of High‐Voltage Tower Influenced by Adjacent Tunnel Blasting Construction

Finite Particle Method‐Based Collapse Simulation of Space Steel Frame Subjected to Earthquake Excitation

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