scholarly journals Dynamic Response of Overhead Transmission Line in Turbulent Wind Flow with Application of the Spectral Element Method

Author(s):  
Maciej Dutkiewicz ◽  
Marcela R. Machado
2019 ◽  
Vol 35 (3) ◽  
pp. 1213-1233 ◽  
Author(s):  
N. Merve Çağlar ◽  
Erdal Şafak

The paper presents a methodology to analyze plane frame structures using the Spectral Element Method (SEM) with and without considering Soil-Structure Interaction (SSI). The formulation of spectral element matrices based on higher-order element theories and the assemblage procedure of arbitrarily oriented members are outlined. It is shown that SEM gives more accurate results with much smaller computational cost, especially at high frequencies. Since the formulation is in the frequency domain, the frequency-dependent foundation impedance functions and SSI effects can easily be incorporated in the analysis. As an example, the dynamic response of a plane frame structure is calculated based on the Finite Element Method (FEM) and SEM. FEM and SEM results are compared at different frequency bands, and the effects of SSI on the dynamic response are discussed.


2014 ◽  
Vol 18 (4) ◽  
pp. 1047-1052 ◽  
Author(s):  
Xingyu Gu ◽  
Linbing Wang ◽  
Sheng Cheng ◽  
Fujian Ni

2013 ◽  
Vol 40 (2) ◽  
pp. 158-171 ◽  
Author(s):  
Marija Nefovska-Danilovic ◽  
Mira Petronijevic ◽  
Branko Savija

Using the spectral element method (SEM), a 2-D numerical model of multi-storey frame structures has been developed. The model has been used to predict traffic-induced vibrations of two, six, and twelve-story concrete buildings measured along the route of a future metro line in Belgrade, the capital of Serbia. Vibration simulations of the six-storey frame match satisfactorily the measured dynamic response. However, there is a difference between numerical simulation and the actual measurements for the two-storey and twelve-story buildings. The results indicate a great potential of the proposed SEM to simulate ground-induced vibrations of frame buildings. However, more complex structural models should be developed to better replicate actual situations.


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