Modified Building Shapes for Reducing Vibrations of Tall Building

Ki Pyo You; Young Moon Kim; Jang Youl You

doi:10.4028/www.scientific.net/AMR.871.3

Paper Titles

Preface and Organization Committees

Modified Building Shapes for Reducing Vibrations of Tall Building
p.3

Interference Effect Tall Building to Fluctuations Wind Load
p.9

Second-Order Convergence and Unconditional Stability on Crank-Nicolson Scheme for Burgers’ Equation
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Risk Assessment Method and Protection Goals of High Concrete Gravity Dam Subjected to Far-Field Underwater Nuclear Explosion
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Three-Dimensional Hydrodynamic Lubrication Analysis of Cylinder Liner-Piston Ring
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A Numerical Analysis of the Interaction between the Piston Oil-Film and the Elastic Structure in an Internal Combustion Engine
p.32

Influence Analysis of the Vibration Frequency to the Dynamic Response of Deepwater Drilling Casing String
p.39

Parametric Study of Air Flow Shape in Saddleback Double-Cladding Ventilated Roof on Input Velocity
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 871Modified Building Shapes for Reducing Vibrations...

Modified Building Shapes for Reducing Vibrations of Tall Building

Abstract:

To investigate the aerodynamic method for reducing motion induced vortex excitation as well as the galloping and torsional flutter of a tall building, We conducted wind tunnel tests on a tall building having a rectangular cross-section with a side ratio, D/B of 4.0 and aspect ratio of 10.0. Three aeroelastic building models were constructed to assess the effect of modified building shapes on the reduction of these vibrations. One is a plain model and the others are the shape-modified versions of the plain model, in which one has chamfered corners and the other has two openings at the top level. Experimental results showed that the chamfered model was more effective than model with the opening in reducing the above-mentioned types of vibrations, especially in motion induced vortex excitation, but not in reducing torsional vibration when the reduced velocity is high. Increasing the damping ratio might not be effective in reducing the bending and torsional vibrations of both the chamfered model and the model with openings when the reduced velocity is high.

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Periodical:

Advanced Materials Research (Volume 871)

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3-8

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.871.3

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Online since:

December 2013

Authors:

Ki Pyo You*, Young Moon Kim, Jang Youl You

Keywords:

Bending, Tall Building, Torsional Vibrations

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