Vibration and Mode Shapes Analysis of Cable Stayed Bridges Considering Different Structural Parameters

Name: Vibration and Mode Shapes Analysis of Cable Stayed Bridges Considering Different Structural Parameters
Brand: Grin Publishing
SKU: 9783656588788
Price: 16.62 EUR
Availability: InStock

Автор: Nazim Nariman

Език:

Корици: С меки корици

Издател: Grin Publishing

Наличност: Външен склад

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Research Paper from the year 2014 in the subject Engineering - Civil Engineering, grade: unknown, Un...

Информация за книгата

Автор

Nazim Nariman

Език

Английски език

Корици

Книга - С меки корици

Издадена

2014

страници

EAN

9783656588788

ISBN

3656588783

Enbook ID

02497505

Издател

Grin Publishing

Теглоt

Размери

148 x 210 x 3

Пълно описание

Research Paper from the year 2014 in the subject Engineering - Civil Engineering, grade: unknown, University of Weimar, language: English, abstract: The vibration characteristic of a cable stayed bridges structure is the main axis of the study in this paper, many structural parameters are used to simulate and determine the effect of vibration on the structural performance by identifying the natural frequencies of the system and the mode shapes that can occur in the real structure. Modeling the stay cables with three famous styles of arrangements such as Harp, Semi Harp and Fan styles, and assigning roller, hinged and fixed boundary conditions on the deck support of the cable stayed bridge, in addition to using two design cases of the girders and pylons dimensions in the global structure for that purpose. Through the use of ABAQUS finite element analysis, the models were generated for each mentioned cases and the results of the frequency linear perturbation step of 10 mode shapes were determined through the simulation of the deformed shapes and the determined values of the natural frequencies of each mode for each case of interest. It was seen that the roller boundary condition was much prone to the early vibration and the stay cables of the direction near to the roller support were vibrated and stressed much more than the other direction compared with the hinged and fixed boundary conditions, and the mode shapes 7, 8, 9 and 10 were the most vibrated cases for all the boundary conditions without any distinction. The week design of the girders and the pylons has the great effect on the vibration of the stay cables, pylons and deck of the structure especially near the roller support direction due to the early vibration of the case of roller support, so the use of cross ties and damping between the stay cables and the girders are very important in the cases of significant vibrations which affect the performance of the cable stayed bridges.

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Vibration and Mode Shapes Analysis of Cable Stayed Bridges Considering Different Structural Parameters

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